Fitech idle problems. Sometimes takes a few seconds to slow down to the 800 rpm idle I have it set at but no If the IAC steps are more than this, you will need to turn the curb idle speed screw in slightly and then repeat the shut-down procedure. Hesitation was the biggest issue and it subsided a bit but still notice it once in awhile. Very happy with it expect for one issue. Fitech phone support seams to be good but as each one of us call maybe we can post up our problems and there fixes to share One of the first thing's they ask is where are the IAC steps. I had the installation of the Fitech a couple weeks ago and have had a Been working on tuning my system. goes as high as 11oo, stays there I installed a FiTech 600 on my 505/t56 super magnum. Mechanical Sync Procedure Warm engine to 170°F+ Watch IAC steps on dashboard Adjust primary Hi all, A little over a year ago I was involved in the installation of a basic 400 hp fitech setup on a stock '72 c10 with a 350. I'm old school and don't know much about EFI but I just used this procedure today, and finally, got my idle like I want. I put a voltage gauge in the cab to monitor the voltage going to the fitech and found the voltage going under 10 volts while My FiTech system is having a hard time starting it takes several cranks, especially when warmed up. I have a '74 Camaro, Skip White 383 Stage 2, Fitech Go Classic 600 w/ 50004 Force Fuel Delivery. What is most likely to Hi guys! Matt here, I bought the 600 hp fitech system, non power adder, It is on a 460, 11. Understanding how to troubleshoot your Fitech system can save you time and stress. This guide will walk you through the most frequent problems and Ok my problem came back but does it intermittently now around town but on a long drive the idle starts hanging to where I have to throttle the throttle quickly in order to get out of a some Stage2. Been installed for a while so Master Fitech troubleshooting with expert tips and solutions. Remember this is now a computer Something else I learned from going through articles and posts was that even though the FiTech manual only talks about adjusting the idle screw located on the front of the EFI, there is Recently though, when I called Fitech to get some help with my random stalling problem they suggested that I could just go back to stock timing. On this week's FiTech Tech Tuesday we are talking the Idle Control menu under Go EFI Tuning!Tech Support Email: techmail@fitechefi. 30 over, vortec heads unsure of the cam and a fitech 600 hp throttle body. Dart block, 383, MSD Probillet distributor, MSD digital 6A using timing controll. FiTech users frequently report idle control issues, which include rough idling, surging, or stalling. At 1st it would not start unless I gave it part throttle and then it ran like crap. EFI go pro 600 on a chevy 502/t56 combo. When Does Fitech have a support email? I sent an email to their info@ address, but thought that somebody might have a specific email or person I could contact for support. But the timing control is one of the main 1987 Monte Carlo SS I transplanted a new 350 crate motor, added a new gas tank, fuel pump, FITech Fuel Command Center 2 and FITech Go Street EFI 400 hp throttle body. I have had to sort out venting issues with the fuel command and fixed that finally with no help from fitech, Has anything went out on your Fitech? I've had my FiTech Go EFI 4 600 HP Self-Tuning Fuel Injection Systems 30002 since 2015. During my recent smoke test I took off the lid and duct tape over the body. Our TECH CENTER offers insights into cutting-edge technology. Sometimes if there are outside Chris had an excellent idea about posting up tuning info, so figured we could have a thread, dedicated to just that. I have to pedal it until the temp hits 160 or so. These issues can stem from To summarize, every problem we've had with this unit has either been hot fuel/vapor lock issues (fixed by adding a return line and repositioning the surge My problem is that it used to work when I got it installed in the car for test drives in my yard and idle. a month. A while after we got the truck The FiTech system can experience various issues, including lean tip-in, hunting idle, and hesitation, which can be frustrating for vehicle owners. com Tech Support Line: FiTech technical support Run a separate ground wire from the FiTech manifold screw to the Battery negative, as this will ensure you have a good ground. The fuel Forum Fuel System: Fuel delivery and regulators Injector problem? Please Login or Register to create posts and topics. When I drive the car after warming up, the idle seems to stick at 1800rpm. what should the idle step be and where to find/check? On dashboard it is at 220 i did find target rpm on the dash is at 50960. When I stop and shut engine off and come back a few minutes later and restart the idle will go up to 1500-1800 Hi all, I haven't posted for a while. My engine started and ran well with minor timing and idle speed I ll start!! Installed last August. Sometimes if there are outside problems such as bad misfires, exhaust leaks, All Fitech EFI systems have learning procedures that the system uses to adjust the active fuel tables it is using for operation. The MeanStreet, minus the Timing Control, simply had the room for the extra wire All Fitech EFI systems have learning procedures that the system uses to adjust the active fuel tables it is using for operation. Idle Control Problems and Drivability FiTech users frequently report idle control issues, which include rough idling, surging, or stalling. Returning to idle under deceleration, engine rpm won't go back to idle when I remove my foot from pedal, it feels like it has some binding All Fitech EFI systems have learning procedures that the system uses to adjust the active fuel tables it is using for operation. Feel free to copy and Paste this little cheat sheet, and add and post Fuel Injection, Carburetion & Fuel System - FiTech info, adjustment and problem thread - Hey guys, got the idea from another forum as a way for us The idle is anywhere from 1400RPM to 2000+ and I can never get the IAC steps off zero, no matter how far I back off the screw. :grin2: I was able to get the car to start for a short run yesterday; so I know the timing is at least close enough to start the car. I was hopeful but no dice. Very rough idle on startup and driving. Very happy with the product. I was driving the other day and suddenly the AFR jumped up to around 17 I recently solved a lean stumble problem and it was a journey to say the least. Started mine today 302, Fitech, Dual Exhaust Well, My FiTech has been running flawlessly for a long time but has an issue now. I keep seeing that the IAC steps need In this video we walk you though the steps involve in setting the idle correctly with a FiTech throttlebody injection systems. Seems to be isolated on the driver's 30001 external fuse (in harness) Fitech in-tank pump Could noise at the tach wire cause a voltage drop? I can get it to run at high-idle (~2000) while An Idle Air Control (IAC) stepper motor valve is used to open or close a passage in small increments (called “Steps”) that adjusts the amount of AIR going through the throttle. Overall I am happy with the way it is running right now but I think it can be better. Sometimes if there are outside problems such as bad misfires, exhaust leaks, I have an in tank pump, basic high flow Mustang style system on my Fitech. Replaced injectors, ran fine for a warm-upshut off for 30 minutesrestarted and ran fine, settled to correct idle My "AFR Learn" is maxed at -35% at idle. These problems can be caused by a range of 5. I always had an issue with the idle coming down. just read some recent FB posts abut high idle problems with reference to throttle butterflies. I have a fairly new install (4 months). This guide will walk you through the most frequent problems and Idle inconsistencies with FiTech systems are a common frustration, often manifesting as a fluctuating or high idle speed. 4:1 cr (E85), cam is 227/234 duration @50 . But don’t I am having a problem with your Dropbox link. I only have 125 miles on the system and have had several issues. I ran into the FiTech team, and we figured out the is I see your IAC steps are very high but I think that is a problem mostly at idle but it's something I see is way off and should be adjusted. Starting issue which went away with replacement of IAC Troubleshooting Guide for Throttle Body Injection For all FiTech EFI Systems 11/29/2018 Congratulations on your purchase of a FiTech EFI System. When I first fire it up in the morning it goes to 1500-ish but then settles around 1000 after a minute. Fix common issues effortlessly and keep your system running smoothly. I know I have had the fitech 400 hp model with fuel command center for approx. Check your idle AFR setting to make sure it's not some weird I have a GM 7. 550's lift, just exhaust manifolds, weiand stealth Hi, I have same problems with my new fitech 30003 installation, runnin rich and lots of hesitation under heavy accelation, but after I adjusting and syncronise both the front and rear I have installed the Fitech on a SBC in a 71' C10. I went through three pumps (on my 3rd now), but traced the problem down to sediment in the old tank, and replaced the tank and sender/pickup, which how ever my problem im having is especially after blipping the throttle and letting it gradually go back to idle it will lean out to the point where it will almost stall and struggle to keep Discover Fuel Injection Systems at FiTech Fuel Injection. I had everything working great with no throttle lag or lean AFR. 5" pipes. Many reported problems with a hanging rpm when shifting out of gear or downshifting or rolling up to a light, followed by a Hi everyone, I am very new to the Fitech systems I have a EFI GO 600 with PA on a slightly modified Pontiac 400. in tank fuel pump from them. I only have about 5-6 miles on the clock since the fitech was installed, so I know . the only difference in the two logs are different days and the second I swapped out My GoStreet 400 starts fine when cold, but wants to stall. Long story short I ended up opening up the throttle blades with the idle screw and re-Cal the tps. Edelbrock intake, stock heads, Hooker headers to dual 2. Tomorrow is Friday, this has to either work properly for my pending trip over the mountain or the Demon has to go Great call on vacuum leak. Ensure the regulator is properly seated and Problem: Hanging idle, slow return to idle speed. This is the For some reason during the initialization of the fitech during cranking it messes it up after that if under 10 volts during cranking. I've adjusted the 'loop rate down' all the way up to 40 and it seemed to help a little bit in terms of returning back to 1000rpm Who else has had this FITECH problem? UPDATED - RUNS! Let me preface, I did alot of research, and tried a few of the solutions, just posting here for more information and experiences. They will not work with FiTech anyway due to "Too many problems". Edelbrock Performer Plus 2162 cam which Hi everyone I am still having problems with my IAC numbers fluctuating not being able to get them to remain between three and 10 at idle I tried to do a data log for 30 seconds at idle but Maybe the FiTech unit that I got was a lemon, idle speed was erratic, when I stepped on the gas below 2500 it would stumble and buck because it went way too rich and I couldn't fix that HiI have read trough several topics in this forum about these lean or rich stumble/bog issues. Idle is set at 800rpm. The manual idle control was a bit inconvenient, although it did work. Got it started, and doing the On this week’s FiTech Tech Tuesday we are talking the Idle Control menu under Go EFI Tuning! Tech Support Email: te******@*******fi. It will not idle cold. 4 crate motor with about 5000 miles on it in a 1973 pickup. But it stalled and never Hello I have the fitech go efi 600 a 302 board 40 over with a mild cam the initial start up went OK, the engine was running pretty good for 50 miles, it is not starting now it fires up and then I have a 66 Buick Skylark that I installed Fitech Go master kit with inline fuel pump. A common indication of idle control issues is when the Struggling with your FiTech EFI system? You’re staring at a modern fuel injection setup that should fire up smoothly, but instead, it’s cranking Rough idle, misfires, or a check engine light? Learn how to diagnose and fix the most common EFI problems, from bad sensors and spark plugs to fuel delivery. The only advice that FiTech tech support gave was that it Adjusting the idle screw will bring it up above the set idle, but the IAC still stays open at 148. If the IAC steps are staying on Zero and the idle is above the desired setting you will unscrew both screws equally until the IAC jumps back and forth from a number under 10 but not You’re not alone. com Tech Support Line: (9 Reset Idle Learn = The Idle Air Learning can be reset to a default value (16 steps) – by setting this control value to 1, and turning the key off and waiting for the system to completely power I have an LS6 with an 4L60E running on an Ultimate LS system. The long issue I have not been able to sort out is the cold idle. ENGINE VACUUM: 15 Dyno’d 583/635 Engine build is 3 years old and ran great with carb except for typical carb starting issues. To diagnose, check for blockages in the regulator’s vacuum port or fuel lines. - Electronic fan control is no longer working (the fans still runs if I jump the relay). Advance set at 18 on balancer and hand held. If I rev the engine just after starting, the engine speed rises then drops below the set idle speed, but recovers just before it stalls. Every FiTech system is meticulously We got another throttle body due to a problem that the guy caused, and now, this one won't start without holding the throttle open with the pedal. Other than that the To recap my struggles with the FiTech EFI have been ongoing since I installed the unit. A common Hi again. I also have the command center. ENGINE SIZE: 318 30 over FITECH SETUP USED:Go 4 Power adder, FCC for fuel supply. On startup the I played with making some adjustments to my Fitech system today. I know I can change the "max" to a lower value, but this seems odd. The only thing you can do to compensate AFR at idle is to make it lean as I had a similar hot start problem on the wife's go street 600. When I finally get the IAC number down to single digits by adjusting the throttle plate stops, the idle now varies, and does not immediately return to Hello I need some advice on hanging idle when engine is at operating temp. Using stock tank the only problem I had was the fuel slosh on heavy acceleration. I wonder what your IAC steps are at the high idle? I just installed the 600 PA on my 496 and had some problems. However I have not seen many answer if the problems were solved Hi he will probably have some trouble with that cam, there's so much overlap it's hard to get a good clean idle. I took it out for the first ride of the year and noticed the idle was staying pretty high, about 1200 rpm vs the normal The GO-EFI4, like I have, uses 6 of 6 wires in it's 6 wire connector. About 2 years ago I had the Fitech 6 pack set up installed on my T/A. I read most of the posts about fitech, MY IAC My IAC at idle will jump from 0-4 - pretty sure that's sorted. If I blip the throttle, it comes down Now she starts up instantly. I have a 350 . System running for more than a year and for the most part I am clueless on this throttle body thing. A month or two after it was im having a problem with my idle, stays high for about 4 seconds. Many FiTech EFI users face common problems like rough idling, starting issues, or poor acceleration that can be frustrating and hard to diagnose. I am having problems with Fitech 30003. What happened was when I was adjusting the pushrod slack one day and letting it idle the longest it Symptoms include surging, hesitation, or difficulty maintaining idle. My last issue I The FiTech tech support guy thinks the problem could be related to fuel filter blockage. I have tried a different approach by putting a restrictor in the iac valve intake port, reducing the diameter from I have a Fitech 600 installed in a newly built Ford 347ci. At his direction, I'm going to pull the filter elements out of the filters Are you powering the pump directly through the Fitech or using a relay ? There is a setting on the setup screen that is the Fuel pump Modulation ( Fuel PWM ) if that isnt at 100% ( I know my Fitech doesn't like to idle very low until its warmed up. I've had the Fitech installed for 3 years or so and it's always ran fine. have it set at 650. I wanted to summarize what I found and learned in one place to help future readers and others struggling with Well, at least I think it's the Fitech. tried playing with iac, but no luck. I did the throttle adjustment screw Having an issue about when engine gets warm.
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