Tuning problem.

[jettster91]

Been having an issue with pulling knock retard.. cant figure it out ive replaced knock sensor checked wiring checked. mech timing. got good compression no boost leaks, etc ive read and read on ECM link trying to figure out what could be causing this and ive been searching here as well. im running stock timing table on around 16 psi. and it pulls knock around the same RPM every pull. ive seen upwards of 10 degrees and then it starts Pulling timing low. i also uploaded a log maybe you guys have some insight on what i may be doing wrong. it was a 2nd gear pull.

Mods:1990 1g talon, Built motor manly pistons 20 over, Wally 255, 680cc on 93 oct, FMIC, dsmlink v3, fuel lab FPR, Bws300 turbo, tubular manifold, 3inch exhaust
Brian crower springs and retainers, revised lifters, hks 272 cams. im sure theres more cant think of.

 

[jettster91]

10 views no idea guys?

 

[secretagentstv]

Well your A/F estimate goes from 11.6 to 12.0 as that happens your knock increases. So you are probably too lean. Also there are no fuel trims in your log i can't say how close your tune is. On top of that you have a code in your DTCs tab. Resolve that code. Make sure you always capture fuel trims. I would also recommend logging your wideband in ecmlink. That way it is easy to compare your actual A/F ratio and estimated A/F ratio. You can always pull timing. 1g timing map is quite aggressive.

 

[jettster91]

what fuel trim do i need to log cause i think theres like 4 on the link? and i didnt even realize i had a code, nothing was on dash ill take care of that,