| feedback. Essentially, af is fine at idle and open loop but car leans out on the ps bank if you rev the car to 2000 + rpm. I can make the car run "fine" if i disable o2 feedback. Ds side is perfect af wise in all modes. Things i have checked or replaced.
1. New o2 sensors both sides
2. No boost / vaccum leaks.
3. Both o2 are getting the correct heater voltage.
4. Narrow band o2's read correctly if feedback is disabled. Ie the wiring to the o2 from the ecu is fine. Enabling o2 feedback is what causes the issue. I do not see ecu leaning out the car in stft's on ps bank.
5. Car has selin translator with 2 mafs, have switched mafs just for the heck of it but thtats not the issue. This has me stumped. Any thoughhts ? I could rip everything apart and start fresh but trying to keep time invested to a minimum. Harry
Formerly yellowzxtt
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