Hi all,

Trying to determine what's going on.

Setup
FIC2150
E85
SD
Tial VTA Bov
EGR Delete

Seems more stable 1st thing in the AM.
Idles 14.5 - 15.3 or so
STFT close to +-2%

Cruise fine 2800-3k for 5 minutes or so

then AFR's start swinging, on Decel injectors stay Rich and don't shut.

after a bit it will recover eventually and be stable for a bit and Decel normally.

Any thoughts?
o2 sensor
MAP Sensor

thanks

 

What are your LTFT ?
Is this happening as soon as the coolant reach normal temp?

 

domyz


I reset trims and LTFT Mid was heading towards -10% after a few cycles
so I'm guessing that's what the issue is.

Where should I remove fuel from RPM-VE or Map?
I don't want to screw up idle
I attached a log file for reference.

Thanks for your help. I appreciate your input

current settings