No rear 02 sensor = LTFT pegged at 12?

[EclipseTrbo420A]

I have been trying to get my fuel trims straight after the AFPR install and I think im doing Ok that is if tuning off the STFT only is ok, But I was searching first and same across the info in my thread title is this true and With my set up Im at(1K) +3 ,(2K) -7,(3K) -11 Does that look right for 550's? Why did I add fuel at 1K ? Idle is at 750 steady...My LTFT seems to stay at 12 no matter what I do. Any suggestions or thoughts ??

 

[FORMONTOYA]

The rear O2 has no efeect on your fuel trims. It just verifies that the cat is working.

Check for leaks between the metering device and the front O2 sensor.


Jim

 

[CanadianTSi]

If your STFT is close to 0 your LTFT should come down over time.

 

[EclipseTrbo420A]

Im getting everything closer to sitting at zero when Im driving but is there a reason that Im adding fuel at the 1K mark?

 

[CanadianTSi]

All cars are different.

As long as your STFT is close to 0 I wouldn't worry about it.