Quote:
Originally Posted by Jfheisenberg
Thanks for taking a look. By what you see, those are the possible issues? What kind of steady state log would i need to validate your point?
Im thinking on doing another normal run and another hard pull and upload to datazap again (longer drives)
I would need something to show the mechanics to they can address the issue, from fuel pump problem to a sensor. They tell me its hard to tell without a check engine light.
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Either something is causing the wild AFR readings, or the sensor itself is bad. I think tomm.brz is probably right and yes lambda is o2 sensor.
A steady state, IE just idling and touching nothing would just make it easier to see. If running conditions are not changing and the sensor is giving you wildly different o2 readings it helps narrow it down.