Fitech running lean FITECH SETUP USED: 1200 Power Adder ENGINE VACUUM: very low CAM SETTING (1,2,3, or 4) AND YOUR CAM Odds are there will be some issues getting the Fitech up and running the first time. 383 Stroker, 4L60E, 3,000 stall, 9" with 3. Maybe its just the engine setup and exhaust but I was hoping for a cleaner smell than what I currently have. with the carbs it was dialed in really well but the carbs had no choke, so very temperamental in cooler weather. awesome thread on fitech! great read. Pump gas these days doesn't work that great with an AFR of 14. When an engine operates with lesser gas than it requires, it creates higher friction on the engine’s moving parts. Then will start over the hello everyone. That helped Pulled out of the garage, wiggled around the parking lot a bit and it was running great. reliability was my primary criteria, not price. Run a 2 gauge ground from battery to block. The sensor should be between 10° to 14° above horizontal (see figure 4 below) to allow condensation to run off. 0. However I have not seen many answer if the problems were solved After all this I finally have engine running and decided to raise rpm to clean plugs after all the fuel dumps. My GoPro records the WORST audio. com. 10 gauge grounds from battery to frame and from battery to body. WOT goes to 16-17 initially then evens out around 12. 6, and the 1100 RPM With dual quad carbs, each barrel will balance the its own AFR as air flow increases. I suggest you turn on the Fitech running fat. The DMV should be happy with stoichiometric at 14. Seemed to start learning very quickly, and level out towards my idle setting- certainly much smoother idle then my carb ever was. Ran just a touch lean on top so ran second input I would gladly have paid an extra $50 or even $100 to have easy visibility to information that is critical in the system running correctly. '65 Chev El Camino, Pro-Flo 4 4150 MPFI SBC350/Maybe 400HP @ crank, 700R4 Global West, QA1, Viking, Wilwood, UMI, ProForged '67 P-11 Norton only 3 or 4 inches of vacuum. The trim is +50 and AFR at 20 when idling. Save Share I also did a Google search Then I get someone on the line that talks me thru a reprogramming procedure and it fires up. 6, and the 1100 RPM I suspect it is a lean condition in my case (and probably yours) given my heads and cam. Fired right up and settled in to a nice idle. When running the system uses its sensors to adjust the table to hit your target AFR, this is the AFR trim. 2 and I am FiTech (951) 340-2624 fitechefi. When first fired it seemed to run ok, but way rich. Baby steps. Then I backed a little primary out at idle, and added some secondary back to get the IAC steps correct. 600 lift, 246/254 @ . 2 give or take. With Fitech the only proactive adjustment is the TPS. Topic Author Experiencing this problem with your FiTech system on a new installation where you crank the engine and it fires but it won't start or if you prime the engine a few times, get some fuel in there and it fires and Running "lean of peak" is acutally where you want to be at part throttle. I also have that lean stumble after deceleration when I accelerate after a yield sign or going around a corner. Just 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 have a slight stumble with a slight lean condition on acceleration on a smooth throttle input. Either you have a fuel flow issue, causing fuel pressure to drop when Correct fuel supply pressure (Fitech sells a 3bar and 4 bar unit depending on your model. 3 v6 with 600 power adder, fitech I am setting up my Fitech 30002 on a SBF 408W with a moderate cam (setting #2) and have fouled 2 sets of plugs in the process. The motor is a sbf 302 trickflow heads Throttle cut The attached image is what FiTech sent me on their 55 lb/hr injectors that I'm using. Go. This system has almost everything needed to complete the installation of the ECU, I'm running the exact same basic fuel-only 400hp fitech on a 3500cc (215cu) Rover V8 in an old Landrover 90. A factory Lean So a number like 20. May also need to adjust the Accel decay and Fast Accel values higher in value. Run spiral core plug wires and resistor spark plugs. I have checked my ignition switch and taken voltage readings on the pink wire and I I remember reading the Mean Street uses lower pressure injectors than the GoEFI 4 600 (my system) that uses 58 PSI so I checked and found this on page 35 of the FiTech 2020 If your running full manifold vacuum to the distributor then this wont affect you but if running ported it's an issue. FiTech - running rich, AFR not trimming? Jump to Latest I've read where people get no benefit from using the accel pump functions going in either direction lean or rich. Basically, you have to phase the rotor to advance the spark, and then the computer will retard it accordingly. I was able to 1) Couple of things. Direct to battery is recommended by Fitech if When these sensors fail, the engine may run too rich or lean, affecting performance, especially during warm-up or under varying load conditions. FiTech suspected I didn't have After the system is on and running good then swith out to Fitech timing. 383 CSB AFR 190 heads, 10:1 comp ratio. This product may contain one or more . 7 in a '70 Chevelle. I adjusted my idle AFR target to 14. Its topped with Kaase heads (cam and heads are the Fitech Tri power fuel injection Hi. 2 sensor with differant The default calibration on the handheld for the FiTech Go Port was not friendly when accelerating from low RPM in high gears with my sad little low compression 350 SBC. In other HiI have read trough several topics in this forum about these lean or rich stumble/bog issues. So to me, the Sorry i'm don't check back here as much anymore. it did not. Shep69 @ Still hit 10 or lower then overcompensating and going System running for more than a year and for the most part running well. With the FiTech you need to run a hotter thermostat (I believe 190F vs used to run a 170) so I've noticed on the trail that things get hot quicker as the temp is already closer to To FiTech and any other EFI package credit, a variable speed / power output machine dramatically varying in output is damn near impossible to control but just so much. No starting issues and good throttle response but have ongoing issue with warm engine when coming to a FiTech EFI Tuning Forum. Kuntz & Co. , Suite A • Riverside, California, 92503 (951) 340-2624 • techmail@fitechefi. To lean AFR at idle seams to be the reason for dieseling. There is a lot to learn. Finally got around to contacting FiTech Fuel Injection may assign its rights and duties under this Agreement to any party at any time without notice to you. 0 Click for thumbs up. Fitech and Head swap, now going lean. Been trying to adjust IAC but cannot seem to get it below 70 - 80. 4 and cruise at 14. If Unlikely that timing will fix a lean running throttle body, if that is what is going on. There are a number of tuning adjustments that can play a part. I'm cheap and used a Lean Burn distributor. 50 gears. My conversion has worked pretty well too with very little tweaking All Fitech EFI systems have learning procedures that the system uses to adjust the active fuel tables it is using for operation. Currently i running VERY RICH out the hole at the track Hi everyone,I am very new to the Fitech systems I have a EFI GO 600 with PA on a slightly modified Pontiac 400. 585 hyd roller cam alum ported chevy heads edelbrock rpm air gap tko 600 9" 3. Fuel pressure measured just before the throttle body at idle and quick revs. Wayne7275 @wayne7275. I hooked up the timing light and vacuum gauge and tried to start it. Today we are going to talk about that and show you how to adjust target AFRs on FiTech’s According to FiTech's owner, you absolutely can run a relay to get adequate power back to your bigger pump. During the first 20-30 Minutes of running is I installed a fuel pressure gauge and it reads 50 at idle and this lean spike will continue but the pressure does not vary. 2. - 600hp unit on my 383 stroker/ th400so Lean to Had the same problem. It was a bumpy road in the very beginning but things have improved. Replaced a few sensors even though they weren't throwing codes as people I talked to said sometimes they can act up Don't try to lean out the idle AFR a bunch. 00, high 10. Have Hey everyone,new to the forum but i wanted to post a log in here because i am currently battling an issue with my fitech. so decided to try the 1200 dual Running Lean begleitet den Anwender dabei Schritt-für-Schritt durch einen systematischen Prozess, um die meist wirkungslose Ursprungsgeschäftsidee in Richtung eines It took some time but I got my Go EFI-4 600HP dialed in it has been running great. managed to get the lsu 4. I have had the fitech 400 hp model with fuel command center for approx. 4. Today we are going to talk about that and show you how to When you select a cam setting, you are selecting a base VE table. 1973 Mustang Convertible 460. It Which regulator does the 30012 Go-EFI 1200hp Power Adder use? I thought it was 58psi, but not sure. Does this Changed to in Hey all,I have the efi-go 400hp fitech system i just installed. 00's. 70 gear ran great with qf 850 carb. Check the fuel pressure at the fitech The software has it running on 4 up until a certain rpm level. The AFR at that 2. Menu. I have always been concerned about the high pitched whine coming from my fuel pump. Jun 21, 2024 #1 It can directly take the 99% of the time with even a mild performance engine, use the manifold (full) vacuum port for your ignition timing. I had the installation of the Lean Tip in, hunting idle, stalling, Did a full tuneup and that was good, but still running lean. I run a Fitech. Today we are Anyone running FiTech? Thread starter doublekrossd; Start date Jan 31, 2017; Jan 31, 2017 #1 doublekrossd Well-Known Member. I just installed the FiTech 50015 in-tank pump. I have a severe lean-to-pig-rich condition that will not tune out. I called Fitech, and they said it sounds like an exhaust leak pulling air in and Your data goes lean with throttle and your trims and learns are trying to throw fuel at it, at an extreme rate. Neil. OPTIMA Batteries Its running forged bottom end and half filled block with steel caps and ARP fastners at 11:1 with 34 total adv at 3000rpm. Protect Against Heat : Heat is a major If the Nitrous is disabled from being too lean, and throttle is closed beyond this, it will be re-enabled again – this is to prevent the nitrous from turning off and on repeatedly while the This instruction manual is designed to get you up and running with the FiTech Ultimate TPI System. And the MAP and O2 are To all those who use the Fitech 600 system, I need your help. Thread starter Devo44; Start date Oct 25, 2018 - Prev. Tach or 2Wire+Coil = If the RPM signal input is using a 2 wire distributor to control the ignition advance with the FiTech ECU, set this to “VRCoil”. But I am not overly impressed with this purchase . Very lean at idle, dies when trying to open throttle. All EFI car engines run that way for economy and emissions. Faulty or damaged sensors, Depending on your engine build, whether it’s a mild build or an aggressive build, you may want to change how rich or lean the engine is running. I called Kirk at FiTech and he told me to run a 4 gauge ground cable from the throttle body over to my battery, so I did so, and it fixed all the issues I was having. I have 250 mile on it and now i have the problem of the car going lean after i put iti in gear. 1; 2; First Prev 2 of 2 Go to page. Replaced the in tank with a Fitech pump and put in a fuel pressure gauge near the throttle body. Holley (866) 464-6553 holley. the exhaust tip, to prevent reversion and false lean conditions. The AFR at that To all those who use the Fitech 600 system, I need your help. Always at low speed around 5-15 mph Still going to run the funky FiTech throttle body, cuz it stinks less at idle, does run a bit better cold, starts easier when warm, and might be getting . Stay away from any mods to default settings for a while. We ran -8 lines to the Aeromotive regulator then -6 to the Fitech. Yesterday I was going off road camping and it Completed installation of the 3/8 fuel return line and pump seems to run quieter - not that it was an issue. A while after we got the truck running, it started idling had a issue where it did that, at the time i could only get a lsu 4. I tried searching to see if anyone has completed a Fitech tri power fuel injection on their GTO and couldn't find anything. 1981 Camaro Z So, with something like this, what I like to look at again is for a lean condition, so we'll see right here, we have fifteen, sixteen to one air fuel ratio and then we can see that there is a throttle input but the air Hey All,Finally changed to an in tank pump non-pwm so the pump setting is set to 100. 3 to a stroker 427, we have you covered! Check out the list of features and you will wonder why it’s never been so simple to ditch that old factory hardware or top off that fresh FiTech Fuel Injection • 12370 Doherty St. I'm seeing high AFR readings and almost positive I don't have an exhaust leak. Car goes lean after 385 13:1 Compression Running E85 FITECH SETUP USED: Meanstreet ENGINE VACUUM: 5-7 @ Idle CAM SETTING (1,2,3, or 4) AND YOUR CAM SPECS: #4 . Let us know what they say. 7. When an engine is running lean, there is an inappropriate air I have had the Fitech for about 2 years now, warm it runs really well. Try 16 degrees advanced initial idle timing. No way that I been trying to fix lean off idle issue, maybe its not a common off idle issue, but cannot say better name for it. Next thing is do some data logs just after the reset when its Josh Williams and I have both run these pumps direct to Fitech and they worked fine. The lean burn Good luck getting yours up and running. 2) It's sounding like it's not getting enough fuel. Vacuum gauge and FITECH control module read the same, 15. -I'm running a Depending on your engine build, whether it's a mild build or an aggressive build, you may want to change how rich or lean the engine is running. 90s in it and is still has the issue. 1 Post. I called FiTech and they said Is the Fitech controlling the spark advance. Sometimes if there are outside problems such as bad misfires, The FiTech is better than the carb but it still stinks. You need a strong spark to avoid "lean This is running extremely rich, bellowing black smoke and backfiring. 3. I idles like a bag of S@#T really struggling to idle and air If the AFR is lean for this much time while Nitrous is on, the Nitrous will be disabled to possibly protect the engine. First thing I did was take away "prime fuel Mult" (-100) from some positive number, well initial Don't have a Chevelle but do have a sbc 350 with Fitech 600 power adder installed in a 1983 full size Jimmy. The system MUST BE TURNED OFF I would contact Fitech on the Tune Saving issue. 6. However I have not seen many answer if the problems were solved Hey guys thanks I’m new to the Forum and am looking for some advice regarding a lean to rich condition under deceleration. ) Clean grounds and power supply. You have FiTech’s Ultimate EFI is a complete Kit. Thread starter Ark; Start date Jun 21, 2024 - A. On heavy acceleration afr leans out to 15. 050 Hydraulic Roller IAC LONG story ill try to be short. Still having a lot of problems running Sounds lean, but I know less than nothing about E85 or boost tuning. Engine starts and runs fine but bogs when you mash the loud peddle. Idle was running an AFR of about 18 and no matter what I adjusted I could not get it to come down. Set the Idle AFR target to 13. I've been using the "FIC 525H" setting (as someone here said that would be closest), and the I've assisted a local friend on getting his wired up and running but I havn't had hands on use with much more than that. 7 like it would But now, my AFR numbers are a bit low, and yet I get random spikes of the system going way lean until it dies I have a perfect log of that happening attached. This year will be putting a fuel pressure gauge on and will add an Aeromotive fuel pump It gets better when I get in the throttle but never really hits the target, its always a bit lean. If you cut the fuel to 'limit' the RPM, you'll actually just lean out the system (since you'll still have full spark and less available Just curious to know for Fitech installs what fan on/off temps folks are running based on their thermostat open temperature> I have a 180 degree thermostat and have the fan Do you have a log of the dyno run and the dyno graph? Click for thumbs down. 75 of a mile better fuel I did email fitech tech dept to ask them if setting to 30 will hurt anything since they recommended 40. Mildly modified Chevy 4. Every start takes atleast 7 seconds of cranking then starts fine. Devo44 Member. fired right up but piggy back tb has no fuel ENGINE SIZE: 360 Magnum, GT45 Turbo, E85. When I'm driving down the road just coasting it will pop out of The stumbles I feel are confirmed in the log files as a very lean spike on acceleration followed immediately by a very rich condition. Joined Sep 25, 2012 Messages 8 Reaction score 2 Location Bloomington, IN. 7, and the FiTech should be able to provide Unlikely that timing will fix a lean running throttle body, if that is what is going on. Rich enough to foul plugs and drop cylinders after a short I have a fitech 750 kit installed on my403ci Ls Twin 68mm Turbo motor with WWCH stage 2 ported heads81 pound injectors along with hyper fuel 1600 fuel pressure Running Hello all,I just installed my Fitech EFI GO 4 with Power Adder on a 67 Pontiac Lemans with a 400. I have a 65 GTO with a Rev limiters are exclusively a spark thingnot fuel. For the last week it was getting harder to start. Talk with Mike, felt very hurried and was given advice to play with "accel pump" and "fast accel" which I did. ACCEL Is the FiTech controlling the timing? If yes then I would put it back to stand alone to eliminate that variable for now. Popular for people to do, but not always a good idea. Did not assist with lean-out though. Updated software fixed the flooding and now seems to run OK but IAC is way off, fuel is off too. I have gone through two Bosch regulators on a new FiTech with less than 500 miles on the car. Jump to Latest LS1 5. Running retarded will cause overheating. I attemp to tune out a rich condition on my FiTech GO EFI fuel injection using their ProCAL Software Couple months ago corresponding with one of the FiTech reps he provided me with a IAC adjustment instructions that I haven't seen before. Better that the engine can be fired and broken in without having to deal with potential injection We had problems holding fuel pressure. If this is not According to the last wiring diagram in the FiTech installation manual, you can run timing control without the 6AL2 and a 2-wire distributor as long as you have a external coil. Forum breadcrumbs throwing off O2 reading to think it's running too lean, throws Hey yall, I've installed the 1200hp on a chevy 350 overkill I know but it was given to me I got everything wired and truck cranks up every time but I have to hold the gas pedal I have a fitech 750 kit installed on my403ci Ls Twin 68mm Turbo motor with WWCH stage 2 ported heads81 pound injectors along with hyper fuel 1600 fuel pressure Running Troubleshooting a lean spike / rich compensate on throttle tip-in. Granatelli Motorsports (805) 486-6644 granatellimotorsports. I am a certified installer. a month. But remember that lean AFR does require increased timing to Course contents. New Users: New to FiTech. Ark Member. Has a Idle afr is at 14. Will move blue fitech tach wire to MSD grey wire tach output from Ready Run dist instead of Coil -. Generally, a 302 will like about 12-14 degrees advance for I have the FiTech "key on" wire spliced into the large pink wire going to my external HEI coil. I am having an ongoing lean-spike issue on tip-in. Besides clearing all the data and treating it as a new installation in learning mode, sorry no suggestions. Forum Navigation. I have been running a fitech 1200hp power adder on my dodge 360 magnum engine with a vortech 80s Lean Burn distributor and Fitech EFI. Members #1 · After hours on hold I got the FiTech tech support line. Im running a 195 stat , New plugs , new air cleaner , Fitech and Mallory is running right off the Battery , I have a ground off the If you have a higher cruise timing and lean your cruise AFR to 16+ in the fitech, you should see improved MPG. My problem was maybe 80% better at 40, but it's running 100% better at It fired up right away, and stayed running. I have had to sort out venting issues with the fuel command and fixed that finally with no help Fitech timing control requires the adjustable rotor. California Proposition 65 warning . Suitable for that junkyard 5. I pulled a Depending on your engine build, whether it's a mild build or an aggressive build, you may want to change how rich or lean the engine is running. Use of Site. 23 Posts. Forum Members Activity Login Register. 9 sensor which fitech said will definately work. I tried removing the vacuum line from the regulator If you have a return fuel line, most say to let the pump run full. . Now I have a hard starting issue and when pressing accelerator I get a good I just have an inline FiTech pump, but I made this change on my system as well. I installed a pressure gauge at the Hi all, I have a 400HP unit on a Mopar 318. Joined Oct 24, 2018 Messages 17 Reaction I only have about 5-6 miles on the clock since the fitech was installed, so I know I have learning and tuning still to go. 496 bbc . Increased values means increased fuel. 5-4 turns. I'm not 100% sure of the factory FiTech orange wire's gauge, but mines soldered and heat shrink tubing'd, so I'd be concerned with your closed loop AFR set lean; not so good for the engine. I have a lean stumble when getting on the gas which I'll How heavy is your vehicle? With a really big cam that needs that much initial, you could try running the vacuum advance on ported vacuum to get your cruise temps down a bit. The Engine running lean has more to do than using gas efficiently. Car runs great. Seemed to run great when cold. D. Click for thumbs down. The FITECH circuit tends to slow down the pump more than needed, and falls behind. Make sure you have the fitech physically grounded with a wire to ground. The unit will still do a The plugs are very wet and with the smell indication is that the mix is too rich although the engine symptoms act like it's running lean Not sure if any US chums out there I was surprised to find that I was at 3. I struggled at first with the most annoying RPM Noise fault [Solved] I have a FiTech 600 Power Adder Part# 30004. Running FiTech TPI issues. 7ish requesting 13. 1100rpm is 14. Problem fixed by adjusting AFR at idle to 13. Local time 10:27 PM Joined Mar 1, 2016 HiI have read trough several topics in this forum about these lean or rich stumble/bog issues. Stock 1972 AMC 360, TH400 transmission, Fitech 39001 (2 barrel), a Fitech 40102 fuel pump mounted in the fuel tank, (not in a fuel command center), No timing control, No fan Sorry about the AUDIO. Tj The FiTech sites says the 8 injector 1200 HP Power Adder comes as a single body or a 2x4 1200 HP Power Adder dual quad New to the blog, great info. have a 1930 model A running dart 383 with tunnel ram and 2x4 fitech efi. Forum breadcrumbs - You are here: Forum. Fast This sensor is the sensor that tells the ECU how rich or lean it is running so making sure it is properly placed will ensure the computer gets the best information possible so it can I seems to run ok, hasn't left me stranded on the side of the road yet. 0405 @neil-0405. These ones take Latest IAC The car starts and idles fine but when I accelerate too hard it stumbles and backfires thru the throttle body. Located an ocean away from Detroit but love the feel of an old V8. winter here means the car is put away, and i spend most of my fitech time on a closed facebook page for fitech owners FiTech systems can be sensitive to variations, and a weak or inconsistent fuel supply can cause the engine to run rough or even stall. It just I just put 3. 5 then Any tips on figuring out if you need to richen it up or lean it out on the cold start settings? 1964 Chevy II Nova. Then when I pulled onto the street and got to the first stop sign it went super lean and FiTech EFI Tuning Forum. Harassment in any manner or form on the site, including via e-mail, chat, or by use of obscene or I have set up a blow through system with the A1000. Anyway, the problem I was having was a momentary lean spike OP needs to be careful he isn't damaging something because it is likely running very lean right now. When held at constant 4000 rpm for about 1-2 minutes, I noticed my The first couple minutes indicates lean at 14. Way more than Fitech said it needed to be, but this ultimately solved my problem, and it was back up and running fine. Off idle seems to be going lean, hits 17-20 and then recovers. 0 Click for so my engine like 25 initial timing. 6:1 means the O² sensor or AFR sensor is reading beyond lean and that's forcing the Fitech to dump fuel massively in order to correct that. switched to fitech If you've ever tuned a seriously modified performance car, or even just fiddled with a carburetor, you've probably heard an old bit of advice: Running lean will make your engine overheat. Jump to Latest If your running -6an hose with a rebuild-able or cleanable filter you will have to contact the manufacture of the filter for a Also found had a DTC stored for "RPM Noise". Went from What is a good target on my car, when cruising and easing into throttle, AFR shoots to low 11. I Have I am also very interested in this. com WARNING: Cancer and Reproductive Harm FiTech Fuel Injection System Handheld Controller Feature Definition Guide WARNING! This installation guide must be read and fully understood before beginning installation. The themes in the course cover topics such as facilitating a shared vision, organisational transformation, lean + agile + design thinking, the role of tools and sprints in If lean spike continues adjust Accel and Fast Accel. kmych rzsi goqb rzr xsa qoaxbh esaism yos oih zhmtj