Fitech bogs down on hard accel

Author: wfsi

August undefined, 2024

WebJul 17, 2024 · The stumble is from the ACCEL settings. There should be several different temperatures. All of them eventually should be at the same setting. Adjust the highest … WebApr 25, 2024 · 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 …

Stumble on fast acceleration - Fitech EFi Tuning Forum

WebOct 7, 2024 · 9. Hello All. I finally gave up and gave in with this fitech issue I am having. Setup: 5.7 V8 - Stock w/ edelbrock intake. Turbo Charged - 10 lbs. boost. Issues: after acceleration and on deceleration from cruising or WOT, AFR goes way lean (16.0 -20) and almost dies. Seems to happen more dramatically under hard braking. WebJul 22, 2024 · 1. Don't have the FiTech control the ignition. Install a stock distributor with an MSD box, the MSD box will provide a perfectly clean tach signal to the EFI. I battled ignition noise on my old powerjection 3 and tried every distributor under the sun and on a last ditch effort went with the MSD box. higbee threading

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WebApr 11, 2024 · The way to try combat this is to increase dtps gain and max to get the fuel in faster on throttle movement. then up the fast accel to increase fuel pushed by all 3 values. One other area you can look at is fast accel decay. up the value to make the amount of fuel set by fast accel inject in a shorter duration of time. WebBogging/engine loads up/slow to respond If the vehicle is bogging (when you step on the throttle, and the engine is slower/sluggish to come up to a higher rpm), this is normally caused by over - fueling. To fix this you would need to reduce the amount of fuel it is injecting as an accel pump shot. To do this, decrease the Accel Pump (for normal higbee thread specifications

Basic Setup Instructions - FiTech Fuel Injection

WebSep 6, 2024 · ornelles. I just installed a fitech system on my Scout II 392. had same issue with cranking and cranking and finally starting, was getting frustrated. Found out the … WebNov 1, 2024 · 1. I have a hunting idle at first startup. Takes about 15 seconds or so to clear. When I shut down and start real quick it's fine. 2. Cold startup was really rough, almost died a couple times but didn't. 3. At slight throttle, it bogs. It's especially bad when going downhill and I just touch the gas. 4. My screen intermittently will not turn on. higbee \u0026 associates scammingWebAug 29, 2016 · Upped all accel parameters, regular and fast accel, to get rid of lean spikes . DFCO cutout and return moved down to almost 20 and 24 respectively, ( to reduce decel backfiring through the pipes), Loop up and down at 33 each, ( to aid in quick return to idle) FCC low power reduced to 38.6 %( runs much cooler now). higbee thread wikipedia

"WebNov 29, 2024 · component fail, it will not constitute or justify a warranty of the entire FiTech EFI system. Replacement and accessory items are available for purchase from FiTech … " - Fitech bogs down on hard accel

Fitech bogs down on hard accel

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WebMar 11, 2016 · It sounds like your idle or cruise AF settings are off or your accel fuel setting may be too lean. A default or user set WOT AF setting could also be incorrect (often too lean). FAST EZ EFI also uses the AF idle and cruise settings to build cold idle and accel maps. The accel fuel setting is used in addition to these maps. WebFeb 20, 2024 · but i increased accel pump to 99 and fast accel to 99 and for dfco return fuel 150. after changing these parameters my car hesitation a lot of better and lower but it is still remains. whats your opinion for me ? my car is impala 77 L6 250 TH350 2.73 final Drive ratio and stock components . tnx. What is your AFR doing when it stumbles? i think ...

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WebJun 9, 2024 · In order to reduce the engine speed, the first thing we need to do is to close the curb idle position of the butterflies. Do this by slightly by turning the primary idle speed screw out (counter-clockwise) about a half turn. This should slow the engine down. Then shut the engine off long enough for the TPS to reset. WebJun 19, 2024 · But keep in mind if you do, it will affect everything, not just accel pump. You really don't have to, the ECU will interpolate based on actual temp. It doesn't just jump for the 65 degree setting to the 170. Also just because you have a 160 stat doesn't mean it actually runs 160 all the time, that is just a minimum once it's warmed up.

WebOct 26, 2024 · Things would only be worse now if you slowed down the pump. So that tells me a few things. One, you might be fighting a bog due to too much fuel in the first place rather than lean. Two, you have got some fuel control values set too high, such as the accel pump and fast accel pump, to start. WebFeb 15, 2024 · Anytime I whack the throttle open, my afr will jump up to 18 then down to 10.5, the motor will bog there for a second and then it comes alive starts pulling hard. The afr generally comes up to 11.5-12 when it clears up. I have adjusted fast accel up to 160 …

WebMay 31, 2024 · Intake manifolds are going to get wet with fuel while running. This wetness changes with temperature, engine vacuum, and air flow speeds. This wetness also m... WebAdjusting Accel Pump Tech Tuesdays EP10. Watch on. Have you ever experienced bogging or hesitations when trying to accelerate with your FiTech EFI system? Today we’re going to show you how to adjust the …

WebNov 13, 2024 · The pump shot duration can be tuned with the Accel Decay and Fast Decay at those same temperatures. I have not changed any Accel Delay values with the Go …

WebNov 21, 2013 · 3,747. Location. Western Colorado. The 2 things that cause a backfire out the intake is a lean condition or spark while a intake valve is still open. Triple check … how far is cambridge ontario from torontoWebOct 26, 2024 · Things would only be worse now if you slowed down the pump. So that tells me a few things. One, you might be fighting a bog due to too much fuel in the first place … how far is campbellsville kyWebMay 9, 2016 · 900. Apr 23, 2016. #8. jimschulz said: I have been having a few issues with FiTech controlling timing and just ordered an adjustable rotor. Working with FiTech and they say youll never get it to run right without phasing the rotor. Mine MSD rotor will be here next week and will hopefully resolve the issues I'm having. higbee \\u0026 associatesWebJan 1, 2013 · Also, the popping appears to come out both pipes on true dual exhaust. I checked timing at 12 init and 33 all in. Also vacuum advance is on full manifold and set to 8-10 degrees. I have readjusted valves with the engine running to eliminate an overtightened exhaust valve. Firing order double checked. how far is cambridge from sheffieldWebMay 9, 2024 · I 'm having the same situation in my 2x4 fitech. When I push the pedal slightly after deceleration my AFR jumps to 16-20 and it bogs. This happens in every temp. I tried to change accel pump higher, I have adjusted decel return fuel, dTPS acc gain and lowered my idle AFR without any effect. My IAC is between 13-16. Thanks how far is campbellsville from louisvilleWebDec 29, 2024 · In my understanding, this setting should've been covered redundantly in the fact that FiTech does recommend disabling the PWM in my scenario, by setting the low/mid/high flow PWM values to 100%. … higbee thread programmingWebAdjusting Accel Pump Tech Tuesdays EP10. Watch on. Have you ever experienced bogging or hesitations when trying to accelerate with your FiTech EFI system? Today we’re going to show you how to adjust the … higbee threads