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Thread: Erratic AFR

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    Default Erratic AFR

    So now that I'm up & running I tried to take my truck on a test drive. Any time I try and give it some throttle the AFR goes crazy and it acts like it's missing. I took a datalog and I'm not sure what's going on. It seems to be fairly smooth when sitting at idle, but jumps all over when the trying to drive. All the other sensors seem to be reading accurately and not jumping around. I moved the WBO2 sensor wire away from everything so I don't think it's noise and I have everything grounded directly to the battery. Any ideas?
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