RomRaider

Hi everyone,

Can anyone shed some light on this issue I'm having.

Front O2 sensor is always running around 14.7 and then at WOT the richest it goes it 13.8. When on dyno my wideband is reading down to 11.5, and overall, the car is running rich and tuning to fuel trims is redundant because that o2 is incorrect. I've attached a log of two power runs on dyno, you can see the front o2 sensor not richening up and the current within the scaled range.

I tried 3 different front o2 sensors and yielded no change?

Very SLIGHT exhaust leak at the tri-flange POST sensor. This will be getting rectified and then tested again.

2004 ADM WRX - A4TH000o
-VF34
-FMIC
-Dark blue injectors
-Short ram intake

Also, there is an AVC problem, locking the cam >90° advance above 6000rpm. Even if I disable AVCS this is still evident.