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Thread: Confused on B3605 open loop commanded fuel

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  1. #1
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    Default Confused on B3605 open loop commanded fuel

    I am currently doing an AutoVE and I noticed I was picking up knock at part throttle. I felt the timing wasn't excessive and happen to look at my commanded fuel pid GM.AFR (commanded fuel) and it is stuck at 14.63 throughout the entirety of the log despite my B3605 open loop table looking like:
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    I have closed loop diabled via the temp table, so what would cause the GM.AFR pid to be stuck on 14.63 and not match my open loop commanded fuel table?

    PS...I had my PE set to 14.63 so I could just work on the part throttle stuff, but my understanding is that the PCM chooses the richer of the PE table and commanded fuel in open loop table.
    Last edited by ddnspider; July 2nd, 2013 at 01:18 PM.

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