||LinkBack||Thread Tools||Display Modes|
Also have noticed a exhaust pop and a leaner AFR on closed throttle decell, at around 17 to 18. Fitech dosent have the best tech support, so I'm asking here first. Other than those two issues, it's been great.
FFR #7388 - Mk 4 Complete Kit w/ IRS, Ordered 10/21/10, Completion Date 11/13/10, Delivered 12/8/10, Drivetrain in 8/21/11, Graduated 6/10/13
.boB "Iron Man"
NASA Rocky Mountain TTU #42
FFR 3691K: Dart 427W, Momar 8 Stack EFI, 600'ish hp, TKO, 3.55 TruTrac, Red with Ghost Flames. Gone, but not forgotten.
BDR 1642: Coyote, 6 speed auto, Edelbrock Blower
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Before changing any of your changes always write down where you started and make sure you save your changes to the ECM before testing them.
Get you engine hot....
First check IAC steps to make sure they are between 3-10 when the engine is hot. If it’s not then read up on how that should be set.
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 temp ACCEL 10 points up and drive the car. You can keep increasing 10 until it goes away or bogs down. If it’s bogging with to much fuel then subtract 10 point until it disappears. Adjusting this up is where I went from ...very nice to wow to holy sheet....in acceleration.
The pop when taking foot off the gas is the DECCEL settings. Again there are several temperatures settings. Always start at the highest temp setting. Starting taking 10 points off the setting until the pop goes away. This is important.....the numbers can go negative...(like -20...).
These units I’ve read are setup for automatic trannies and not standards..... the DECCEL settings will fix this.
Again please make sure you save each change to the ECM before testing it.
The DECCEL is the easiest to change and I would do first.....I hate that popping when taking your foot of the gas.
Once your happy with your settings the ECM will learn from there and make changes to your set numbers.
Mk4 complete kit, 331 Stroker, TKO600, Moser 3.55, Fitech 600
Last edited by Brewha; 07-17-2019 at 03:15 AM.
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|