Lean banks 1 and 2

Cobrapete · Jul 1, 2003

My computer gave a check engine-- when scanned says
lean bank 1 and 2 could my o2 sensors be bad, my A/f ratio
was 11:1. Has anybody come across this problem?

Pete

white97 · Jul 5, 2003

i have run across this problem before and it was because i had to big of a mass air flow sensor.

RESTOMAN · Jul 12, 2003

LEAN

IT COULD BE THE MAF CALIBRATION OR IN THE TUNE IF YOU HAVE A CHIP--

I WOULD HAVE TO HAVE SOME MORE INFO FIRST.

THANKS
JOE

Cobrapete · Jul 12, 2003

Yeah I found out it's the Chip, I am having it re-burned.

Thanks,
Pete

Lean banks 1 and 2

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