Fitech Efi Runs Rough When Cold

The purpose of this article is to highlight some of these common problems and how to fix them, so your mighty "Five-Oh" runs just as good, if not better than it did during the Reagan/Bush Sr. For cold starts add or subtract fuel from Crank fuel 65f, for hot starts add or subtract fuel from crank fuel 170f. Hoping to eliminate some of the problems associated with drivability and fuel consumption of a big Holley double pumper. Anybody have any ideas?. FiTech Fuel Injection is dedicated to engineering, developing, and producing the most advanced and affordable electronic fuel injection systems on the planet. I used to run an 850 Holley. Oil thinning, which can lead to catastrophic engine failure. – carb charts recommend 760 cfm. 55:1 gears in the 12-bolt. Hello, I have a 1995 Mercury 150 efi Xri Saltwarer Edition. aA aH aI aN aU aW aX aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az bK bN bT bU ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br. It ran well when i first put it in the car but not for long. Sometimes if there are outside problems such as bad misfires, exhaust leaks, or any other situation that could cause poor readings on the O2 sensor, the system will try to compensate in order to keep the car running. You don't have to mess with the ignition at all. They perform a set function based on rules and information stored in the ECU, with all the freedom digital control systems allow. I haven't torn apart the distrib because I'm swapping out the front shocks and replacing a torn CV boot. Second owner. Re: FITECH EFI 600 Basic and Command center intall with pics, factory tank It seemed to be an ongoing issue that they felt was a big enough problem to start tagging the FCCs with a "this fuel idle parameter must be changed to -40 if the FCC is used". The street rod and musclecar communities are becoming more and more aware of what’s out there, and yet there is still that age-old assumption of using a laptop to make your EFI conversion work properly. 0 Backfiring/Misfiring under load and part throttle starting in the cold mornings of October. But, it could be something else. Always fixes it but can be annoying. I've changed the plug wires this week, running them on the outsides of the valve covers and behind the heads. i am having trouble with an engine start issue hot or cold, the engine fires then stalls straight away. Its not the MAP either; a failure causes lean operation. Well at least the fuel command center did. This is often accompanied by the observed air-fuel ratio reported as consistently lean. Pretty much daily drive this car when it's not raining. It was designed to deliver a minimum 200,000 mile operation in typical fleet operations, which would translate into a lot longer for the conscious individual owner who really takes care of it and drives it properly. FiTech EFI fuel injection is produced by the number one and America's oldest speed shops, Speedway Motors. Does your system have the same type of cold start/ warm up qualities of new cars? i. 060", Ferrari valves, Lunati 73925K2 spring set, no-lead valve seats, bronze valve guides, new valve guide seals, 86cc chambers with opened/polished ports. I have played with he settings, currently crank 20f= -10. We installed the. Dan agreed to give it a try – I had let him borrow my FiTech Command Center when his was not working so he was returning the favor. By Chad Simon. The only thing I can think of is the valve lash that may cause it but I have checked that. Dyno tests were in the end of 2014 then finished building the car in 2015. 4 - slow idle in gear - drops to around 600 rpm. Started to run very fat and has ever since. The engine is a 385 stroker, 10. All Fitech EFI systems have learning procedures that the system uses to adjust the active fuel tables it is using for operation. Irregular idle speed. Unfortunately, cold-start is not a tuning function in some of the systems, although the EZ-EFI 2. This is a piece of car history from another time. 6 rockers, it will bring the hp numbers up to approx. 9, 65F= -16. 0L in the current crop of 2500's, you have a winner. We installed the. Not long after that she started showing signs of the dormant Parkinsons gene kicking in, runs in my mother's family, The doctor traced it back to the CO poisoning, said a major life trauma or major stress is what usually kicks it in. Ive got a mean street 800 on a 427 stroker that runs on e85 and I need help. P0335 is a diagnostic trouble code (DTC) for "Crankshaft Position Sensor "A" Circuit Malfunction". Hi I have an 86 F150 302 efi. Its slower than the ANL fuse. I found the issue to be my distributor not properly seated. DIAGNOSE – ENGINE STALLS WHEN COMING TO A STOP OR ON DECELERATION. I have played with he settings, currently crank 20f= -10. EFI go pro 600 on a chevy 502/t56 combo. This corvette doesn't have much room to mount anything so the CDI box is on the passenger side under the dash and the efi unit will. Most switched to an efi tank and sent the CC back, have also talked with a guy who is running a C5 regulator with the original C2 tank. Anybody have any ideas?. The exhaust is leak free. Mine runs great hot or cold What's your IAC count at idle? If it's over 15 when warm, fix that first. Once started, in has a tough time idling, slugs around at a very low RPM and slowly comes up, then all is good. Unfortunately, cold-start is not a tuning function in some of the systems, although the EZ-EFI 2. The pump also will run when the key is in "START" as the pressure drops during cranking. It ran like a new car. Well, assuming you got the L96 6. This rotating shutter produces a digital Profile Ignition Pick-up (PIP) signal, which is used by the PCM and TFI to provide base timing information, determine engine speed (rpm) and crankshaft position. Heres the log file! Thank you! Uploaded files: You need to login to have access to uploads. Low pressure fuel filter, vent hose for fuel pump kit also not in the fuel pump kit, have too buy for easy install. Free shipping for all orders over $75. In an internal combustion engine, the expansion of the high-temperature and hhigh pressure gases produced by combustion applies direct force to some component of the engine. Usual rust spots on cab corners and over rear fenders. There are a couple more efi units out there that can handle boost and nitrous that have been out for a while. 8/18: still going strong years later. Re-ran the setup process and same result, runs good till it goes into closed loop then in dumps in so much fuel the back bumper is now covered in black soot. Since day 1 I have had the same annoying issues: - Surging idle (sometimes to the point of stalling out) - Long starts (about 2 Surging Idle, Long Starts, Erratic RPM Behavior, Bucking at low RPM. It runs really well, but my engine has some overheating issues that I just can't seem to resolve. Actually, with the correct pressure I bet my cold start method will no longer be necessary. The exhaust is leak free. It's did great until today. I have installed the 600 Kit and Command Center a few weekends ago. It started running fine when cold but after it warms up it starts to run rough, lose power, and runs REAL rich. A 10' run of 16g wire for a fuel pump does not seem smart to me. I had this same issue with mine, turned out the FCC internal pump was broken so when I would crank the engine my mechanical pump was filling the FCC but the internal electric pump wasn't sending any fuel to the FiTech unit. Readjusted carb settings I think it was a combo of all the above not any single item. The MAP sensor if defective would cause the engine to run rich, it should be a 1 BAR sensor. If engine won't fire on first crank but fires on 2nd or 3rd click go in hand held under "crank" raise crank fuel till it fires on first crank. However, I don't see them being competitive with Holley at this point. Have one system on an early Bronco and will install the 30003, 400HP version on an AMC 304 in a Scrambler soon. One of the most common symptoms commonly associated with a problematic idle air control valve is irregular idle speed. With the XFI self-tuning calibrations, the FAST system can easily be set up to provide cold-start idle and other street-performance qualities related with EFI operation. I've changed the plug wires this week, running them on the outsides of the valve covers and behind the heads. 050" lift, 114 LSA) with valve springs to match. I have the EFI set for 850 rpm idle but the ignition tries to advance starting at 800 rpm, I think they are fighting each other. After its warm it runs just fine. I'm getting the Motorcraft dizzy because my original is not rebuildable. Shop C3 Corvette performance upgrades here!. Running to cold and rich and fouling plugs. Introducing the all new Go EFI 2 Barrel system for your 4, 6 and most 8 cylinder vehicles. A cold engine, with AC and ran running has no chance of maintaining the idle. Dyno tests were in the end of 2014 then finished building the car in 2015. Not long after that she started showing signs of the dormant Parkinsons gene kicking in, runs in my mother's family, The doctor traced it back to the CO poisoning, said a major life trauma or major stress is what usually kicks it in. so the FiTech is all installed. I had this same issue with mine, turned out the FCC internal pump was broken so when I would crank the engine my mechanical pump was filling the FCC but the internal electric pump wasn't sending any fuel to the FiTech unit. ELECTRONIC FUEL INJECTION (EFI) D-Jetronic This was the first Bosch Jetronic system. 6 and 65f=9. Pretty much daily drive this car when it's not raining. So my FiTech Go EFI arrived today. 55:1 gears in the 12-bolt. Something else to consider, because of the FiTech price point and its features it seems like a LOT of people jumped on the EFI bandwagon, and while I don't have any actual numbers I am willing to bet more people on this forum are running FiTech then all the other EFI systems (besides Ford OEM) put together which just lends to more problems. truck recently started idling really rough, stalling at times with exhaust popping sounds. Every start takes atleast 7 seconds of cranking then starts fine. I used to run an 850 Holley. FiTech's MeanStreet EFI Throttle Body System is designed for engines that produce up to 800 HP. Dyno tests were in the end of 2014 then finished building the car in 2015. Mine runs great hot or cold What's your IAC count at idle? If it's over 15 when warm, fix that first. Dialing in the MegaSquirt Startup Sequence So, you’ve just installed a MegaSquirt, and are having trouble getting the engine started? With MegaSquirt, or any standalone engine management system for that matter, the startup sequence is something that needs to be tuned for your engine. Ignition wise, I am now using a locked out MSD distributor 2 wire connected directly to the FiTech with the negative side of the coil wired to the FiTech to control timing. Started to run very fat and has ever since. 80 over 427 Chevy with over 0. 7L that after the EGR was deleted the truck would run horrible until it got up to operating temps. FiTech Fuel Injection has become a leader in the EFI realm in a very short time. Sometimes while. The products featured in this review are the FiTech 30002 Fuel Injection System and the FiTech EFI 40003 Fuel Command Center system. I've heard FITechs support isn't the greatest though, Holley's is better. I don't know what, if anything, replaces the choke in an injector system or how they mitigate cold. If not fixed when money runs out, they can have the title. nascar429 on August 13th 2017, 10:01 am Starting this build for a friend in about 3 weeks. Something else to consider, because of the FiTech price point and its features it seems like a LOT of people jumped on the EFI bandwagon, and while I don't have any actual numbers I am willing to bet more people on this forum are running FiTech then all the other EFI systems (besides Ford OEM) put together which just lends to more problems. If your car, truck, or SUV doesn't run up to snuff, you can pull off to the side of the road and call for towing assistance. The transfer case being painted silver, the way the motor runs and how clean it is, leads me to believe that it could have been rebuilt or just removed and painted when a clutch was done. Although I have had a bit of a learning curve with getting the tune right for cold starting and afterstart fuel enrichment. To be honest in all my years of Efi cold start tuning. i am having trouble with an engine start issue hot or cold, the engine fires then stalls straight away. 14,803 likes · 74 talking about this · 119 were here. All fleet maintained, new filters, oil, etc. i adjusted the target fuel air ratio close to stoich at idle and light cruise and got the mileage up to 9. However, I don't see them being competitive with Holley at this point. No downside. 9L Supercharger(Sold. I installed Holley Sniper on three other Mavericks here in Brazil and the problem also exists. Unfortunately, cold-start is not a tuning function in some of the systems, although the EZ-EFI 2. I haven't gave up completely on the efi conversion but the simplicity of the car with the carb on there makes me less nervous to drive it without fear of a failure. 6 and 65f=9. Fitech- Won't Start - Update 6. I think its time to reconsider what I am doing, I originally decided that I did not like the look of the 5. Mustang Monthly has a specialized editorial package that covers everything from do-it-yourself recommendations to the history of Mustang. The street rod and musclecar communities are becoming more and more aware of what’s out there, and yet there is still that age-old assumption of using a laptop to make your EFI conversion work properly. All Fitech EFI systems have learning procedures that the system uses to adjust the active fuel tables it is using for operation. I found the issue to be my distributor not properly seated. Most of the issues I had concerning the FiTech were alleviated by making sure I was grounded to the hilt and that I had no vacuum leaks. My question is on cold start. Automatic overdrive transmissions had replaced all C-4 and C-5 applications by the 1986 model year. New and Remanufactured Throttle Body Assemblies for 305, 350, 454 Chevy, GM, GMC Trucks, Cars, Vans and 6 Liter and 7 Liter Trucks. The main power cable from battery to front the front of junction block in the engine bay. FiTech, Riverside, California. I ordered the EFI 2. I have to hold the gas down for a while until the car warms up and then its fine. The engine is a 468ci big-block with a mild hydraulic roller cam, a TH400, a warmed-over converter, and 3. Basically the idea is to ensure I don't have a fire issue if the wire was to short out as it runs across the passenger area through the entire car. The colder the outside temp. I have to open the throttle after it fires and rev it a little to get it to stay running and idle. Initial Calibration of the TBI Disclaimer The author of this presentation assumes NO responsibility for information provided causing the owner to modify or alter their motorhome which shall result in problems or mishaps. i had an '84 silverado that wouldn't run worth a darn untill it was warmed up. Gorgeous Restomod 454 SS Chevelle454,Edlebrock heads,Hyd Roller cam,Fi tech EFI,TKO 5sp,12bolt posi,Hotchkis sway bars & rear link bars Qa1 coilovers 4,tubular a arms Wilwood 6 piston frt,4 piston rear,runs and drives perfect,always constant show winner. Plugs are a little dark but not bad, and I'm running plugs that are 1 step hotter than stock (R44's). After sitting overnight or a few days my 1999 Camry le 4 cylinder Automatic has trouble holding an idle. The quad ran really well until I took it onto some rough ground to have a ride around, a few hours later the engine started to run really rough as if the engine was flooding. Idles rough and hesitates coming out of the hole. Not too much info online and Fitech service is off and on. A simple way to test the battery terminal is to start the car when cold then immediately feel the battery terminals. Richening the AFR targets don't seem to have any effect on the off-idle or post shift lean conditions. Usually a bad or failing idle control valve will produce a few symptoms that can alert the driver of a potential issue. Something else to consider, because of the FiTech price point and its features it seems like a LOT of people jumped on the EFI bandwagon, and while I don't have any actual numbers I am willing to bet more people on this forum are running FiTech then all the other EFI systems (besides Ford OEM) put together which just lends to more problems. Lots of parts. Problem is when I first start the truck in the morning (or after sitting awhile) and go to take off, it will chug, bog out, or barely go for a few seconds, then snap out of it and run fine. why do carbureted engins run like crap when they're started cold? my 4-wheeler won't get out of its own way and backfires untill it warms up for a few minutes. Ok here's my first issue with my 03 launch ssv. FYI, if the FiTech system works out, I'll be selling my offy intake, carbs, and lots of extras for way cheap, stay tuned on the parts thread. By continuing to use this site, you are consenting to our use of cookies. If your car, truck, or SUV doesn't run up to snuff, you can pull off to the side of the road and call for towing assistance. The engine runs beautifully, with perfect idle at 650 RPM, but every now and then I hear the IAC give a sort of "snap" and the idle is at 1200 RPM. The products featured in this review are the FiTech 30002 Fuel Injection System and the FiTech EFI 40003 Fuel Command Center system. 560 Lift, 216° in/220° ex duration at. This breaker is only on one thing. always had this issue, but the car runs fantastic. The engine cranks up from cold and hot fine and it runs 3/4 to wide open fine, and occasionally runs at 1/2 fine, but at other times it runs very rough at 1/2 throttle (stuttering is the best I can describe it), the main thing that I notice when this is occuring is that my fuel flow meter jumps from. All of this can be eliminated with a primer system which can be viewed here. Cranking fuel adjustments: With the key on go to the Go EFI Tuning menu, find Crank and Warm up. Every start takes atleast 7 seconds of cranking then starts fine. You may have to register before you can post: click the register link above to proceed. 4:1 cr, Comp 280h cam 230/230. Free shipping for all orders over $75. Fitech fuel injected 351m , headers , intake, performance cam , valves and springs changed ,new power steering box and pump. It will just continue cranking. DIAGNOSE – ENGINE STALLS WHEN COMING TO A STOP OR ON DECELERATION. Every start takes atleast 7 seconds of cranking then starts fine. There are a variety of different misfire causes that can occur that can keep a cylinder from combusting properly. Cleaned it the best I could do. hi nice tech tip ,. Seems worse on warm start. Have one system on an early Bronco and will install the 30003, 400HP version on an AMC 304 in a Scrambler soon. The street rod and musclecar communities are becoming more and more aware of what’s out there, and yet there is still that age-old assumption of using a laptop to make your EFI conversion work properly. We design and engineer automotive fuel injection products for. I have played with he settings, currently crank 20f= -10. We set the fuel pressure to 43psi. Gona Drive it some more and see if this problem comes back. One of the online Ford dealers wanted $1000 for a Ford dizzy. Changing these settings should help with your start up issues along with setting the IAC. We do not recommend the single plane intake combin. I'm not sure why FiTech says it doesn't matter, if you think about it the EFI system is spraying fuel for each cylinder individually. Initial Calibration of the TBI Disclaimer The author of this presentation assumes NO responsibility for information provided causing the owner to modify or alter their motorhome which shall result in problems or mishaps. I don't have a SD card in my FiTech but I think it's working know not sure, I did manage to get to the log file there was 4 files I deleted three went out run the car for a few mins push data log on let it run for a few mins, hooked it back up and there was 2 logs it's shows basic sensors. Called FiTech support few times and they told me it's either a vacuum leak or adjust the primary/secondary. Anyway,i let it run a little and everything seemed ok so the wife. But in my 15 years of doing EFI, spark control is often overlooked. FiTech Electronic Fuel Injection This one's going to be more of an opinion post than a project, as we haven't installed our Fitech yet. I'm only getting a little more than 2mpg. I have a Comp Cams XR286R Cam in my 383. with the efi all self tuned to factory settings it gets 7mpg, has a rough idle, and will randomly die and might restart. i installed my efi system yesterday 2 of us took us 4 hours with running the over flow/vent line back to gas tank and changing fuel pump. Runs,drives straight. I liked the charm of the manual choke cable, but the EFI is much more refined. I like many others have purchased a FiTech TBI and due to it being so new there really is not much out there on it when it comes to tips and tuning. Starting a stone cold engine the first time of the day normally takes a bit more effort. and it started idling a little rough and was running rich do to the tiny bit of outside air being introduced into the exhaust stream. Sometimes while. It starts from cold with three pumps of the accelerator every time, idles cold without any intervention on my part, and once warmed up a restart only requires turning the key. As the engine warms, the IAC counts should decrease. Now I can pull a skiier for about. It is inconsistent and sometimes will die. of the Racing and Performance Products From the 2015 SEMA. When FiTech Fuel Injection started doing business, the company hit the ground running - at full speed. The red 1983 Ford Mustang GT you see hazing the tires into submission has been around BangShift for a decade now, ever since it was introduced as the donor body that was going to house a big-block. Also the cold starts were a pain. i adjusted the target fuel air ratio close to stoich at idle and light cruise and got the mileage up to 9. Hi Fitech Support. Compare the most helpful customer reviews of the best rated products in our Automotive Replacement Fuel Injector Kits store. We did a 300 mile highway run, top on, no side windows in. Car won't start unless I give it gas if it starts at all. The all new FiTech Force Fuel System makes the upgrade to fuel injection even easier! The Force Fuel simply connects to a stock mechanical or electric fuel pump then supplies the EFI system with high pressure through the use of an internal 340-LPH pump. OK, so part of the FiTech conversion was about moving my battery to the trunk so that I could configure my cold air intake to where the battery was. why do carbureted engins run like crap when they're started cold? my 4-wheeler won't get out of its own way and backfires untill it warms up for a few minutes. The Go Street EFI system is ready to run WITHOUT programming. My question is on cold start. 7L 4L60E) has a P0300 code and after alot of digging i checked the fuel pressure. Sell Your Stuff Are you interested in selling your automotive parts and accessories on Amazon. I have to open the throttle after it fires and rev it a little to get it to stay running and idle. 0L engines are very susceptible to an idle instability when an open-element air filter is attached to the end of the mass. Sometimes if there are outside problems such as bad misfires, exhaust leaks, or any other situation that could cause poor readings on the O2 sensor, the system will try to compensate in order to keep the car running. 800 HP Street EFI. To help enthusiasts navigate EFI systems, FiTech unveiled a new webpage. 2006 Mercury 60HP EFI 4 stroke will not idle, starts fine, runs about 15 seconds and dies - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. If the engine was cold it would cut off when I came to a stop. I hope this helps you keep a keener eye out for the little things. Hi I have an 86 F150 302 efi. I have checked for vacuum leaks with carb cleaner and none exists. it definitely has a hard time staying cranked when the engine it cold. They perform a set function based on rules and information stored in the ECU, with all the freedom digital control systems allow. Changed the startup and crank values way too much to have the same poor start up no matter if its cold or warm. Deprecated: Function create_function() is deprecated in /home/forge/primaexpressinc. I have had the Fitech for about 2 years now, warm it runs really well. Dan agreed to give it a try – I had let him borrow my FiTech Command Center when his was not working so he was returning the favor. Im about to ship it back to them and run a carb again. truck recently started idling really rough, stalling at times with exhaust popping sounds. (FiTech) is recalling certain Summit Racing Max 500-EFI 240500 fuel injection systems. Before you decide on any plan of action please read this article. Boat engines have the same operating principles as do land vehicle engines, but having trouble with your boat engine can leave you and your family in a precarious predicament. NEW PRODUCTS. (FiTech) is recalling certain Summit Racing Max 500-EFI 240500 fuel injection systems. From the engine bay everything runs from there. I have had it checked and they said it is set at the right specs. FiTech Street EFI 400 HP Conversion - 1958 Corvette I have converted my 1955 Belair to Edelbrock Pro-Flo EFI in 2003, and that is one of the best things i have done so far in terms of drive ability. When I ran E85 through my procharged challenger using a FITECH 1200 fuel injection system, I struggled through dozens of data logs trying to get the tune right and I continued having issues I attributed to variations in fuel quality from fill up to fill up. I keep looking at the fitech 400 onenot as tuneable, but i think it would be perfect for my stock 90 302. 1998 Mitsubishi Galant, manufactured fall '97. Also the turbo is pushing warm air most of the time, i really don't know. FiTech EFI systems use a Manifold Absolute Pressure (MAP) sensor to read vacuum of the engine, and with this information, we can calculate the load of the engine. Finden Sie Top-Angebote für CHEVY TURN KEY 383 SUPER STROKER STAGE 2. I have played with he settings, currently crank 20f= -10. We design and engineer automotive fuel injection products for. I have to open the throttle after it fires and rev it a little to get it to stay running and idle. "Enthusiasts that are realizing that electronic fuel injection systems run better in the cruisers are really going to see the biggest advantage in converting to a self-tuning EFI system. – carb charts recommend 760 cfm. So you got cranking and after start set but after a minute or 2 of idle time the engine slowly starts to idle rough or eventually even stall. I have a 1991 K2500 with the 5. Sometimes if there are outside problems such as bad misfires, exhaust leaks, or any other situation that could cause poor readings on the O2 sensor, the system will try to compensate in order to keep the car running. Simply bolt-on in place of your factory Holley or Q-Jet carb and the self-tuning system will eliminate cold start issues, hesitation, vapor lock and flooding problems. Cold start to show how well it runs cold. Find over 480 Chevrolet C10s currently listed for sale today on OldCar. 3 other times backing out of a space after warm start. By continuing to use this site, you are consenting to our use of cookies. I have removed the carb again and cleaned the needle valve out and the whole of the carb just in case there where any dirt behind it. 1/17: this is the first winter I have had a fully functional car. The engine runs normally otherwise. I turn it off, take off the seat and rotate/apply pressure to the spark plug wires where they meet the plug. I have to hold the gas down for a while until the car warms up and then its fine. We design and engineer automotive fuel injection products for. Lots of parts. The FiTech is similar to many of the now familiar self-learning throttle body EFI systems on the market. The FiTech electric fuel pump runs when key is first turned to "RUN" to pressurize the system and then turns off. 700 lift and the Power loss from going to a BDS EFI hat over the Mechanical was very substantial, let alone all the burping and farting it added to the system. the issue i am having is i have a 1968 charger with a 383 engine stroked to 500 cu in. We take a closer look at the Bronco TBI Fuel Injection system which is pressure controlled and will not sputter at elevation or extreme angles - 4 Wheel Drive & Sport Utility Magazine. A FiTech system was used, but other options are available as well, by Holley, Edelbrock, …. Not long after that she started showing signs of the dormant Parkinsons gene kicking in, runs in my mother's family, The doctor traced it back to the CO poisoning, said a major life trauma or major stress is what usually kicks it in. The quick-start guide is all that I used initially, but it also comes with a complete, detailed user manual. All Fitech EFI systems have learning procedures that the system uses to adjust the active fuel tables it is using for operation. The main power cable from battery to front the front of junction block in the engine bay. I drive my car almost every day, snow or shine. Email alerts available. New and Remanufactured Throttle Body Assemblies for 305, 350, 454 Chevy, GM, GMC Trucks, Cars, Vans and 6 Liter and 7 Liter Trucks. 0 EFI to his big-block Camaro and while it runs great, it has definitely lost much of its old rumpy cam idle characteristics. We have to remember that FiTech was the first to release affordable, TBI EFI systems. FiTech had the new system on display in its signature matte gold color, which is eye catching to say the least, and helps retain an old-school look but with all the benefits of a modern EFI system. It also was not happy in the cold weather. I have plagued myself sorta with issues that could have been avoided. Tires look good, AC is ice cold. EFI University is the first school of it's kind, offering Aftermarket Electronic Fuel Injection training classes and seminars for the high performance racing industry at affordable prices. Cam is pretty aggressive with 110 degrees of lobe separation and 286/292 duration. Its not the MAP either; a failure causes lean operation. A MAP (Manifold Air Pressure) sensor thet is telling the ECM thet the manifold pressure in the engine is high when it is low. Something else to consider, because of the FiTech price point and its features it seems like a LOT of people jumped on the EFI bandwagon, and while I don't have any actual numbers I am willing to bet more people on this forum are running FiTech then all the other EFI systems (besides Ford OEM) put together which just lends to more problems. Alright guys im relying on someone to help me out here with the actual PER GM specs for the Vortec Fuel pressure. The long issue I have not been able to sort out is the cold idle. After spending half the summer working on this system I finally got it running "okay". Fitech- Won't Start - Update 6. I have to give it full throttle to start when cold but runs perfect when hot. Hello, I have a 1995 Mercury 150 efi Xri Saltwarer Edition. com/public/ty2tca/i8a. Ive had it on the car for about 7 months. The IAC steps seem ok, but since you have been inquiring I finally watched those on this last run and the temp was 170°F plus. Read honest and unbiased product reviews from our users. I'm running a tanks inc efi tank with walbro 255 pump. By continuing to use this site, you are consenting to our use of cookies. But in my 15 years of doing EFI, spark control is often overlooked. Once I have those times I am going to swap intakes as I traded a friend for an RPM air gap so I can shed some light on the LD340 vs Air Gap intake comparison. I do miss the manual nature of a carb at times. Hi Fitech Support. Fitech EFI install input needed. The engine cranks up from cold and hot fine and it runs 3/4 to wide open fine, and occasionally runs at 1/2 fine, but at other times it runs very rough at 1/2 throttle (stuttering is the best I can describe it), the main thing that I notice when this is occuring is that my fuel flow meter jumps from. Every start takes atleast 7 seconds of cranking then starts fine. The HEI is a great distributor for a street or street/strip car. The products featured in this review are the FiTech 30002 Fuel Injection System and the FiTech EFI 40003 Fuel Command Center system. Since day 1 I have had the same annoying issues: - Surging idle (sometimes to the point of stalling out) - Long starts (about 2 Surging Idle, Long Starts, Erratic RPM Behavior, Bucking at low RPM. Get yours today!. Ive got a mean street 800 on a 427 stroker that runs on e85 and I need help. always had this issue, but the car runs fantastic. 3 Runs rough when engine is cold.