Quote:
Originally Posted by Gizm0
Cylinders 1, 4 & 5 pulled a lot of timing when you shifted into 3rd.
High and low fuel pressure look good. Someone said earlier HPFP pressures were low, but the couple of logs where the pressure was in the 700psi range were partial throttle. HPFP will only push about 700psi at idle or low throttle input, and will increase to 1500+ psi at WOT so your HPFP is fine. I doubt your secondary oxygen sensors are the culprit. You’re running open loop in WOT so o2 sensors don’t have any effect there. They will affect how the car runs in closed loop though, at idle or low pedal input when the AFRs are close to 14.7:1.
STFTs are a little high, but within +/- 10% so not alarming.
Your WGDC is doing something weird, jumping up and down. Boost solenoids might be getting tired/sticky?
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Open loop at WOT?? The only time the DME is open loop is when there is a O2 sensor fault or at startup.
He's also not having the surging issue at WOT, because diagnostic routines are mostly disabled at high DME CPU load.