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Question
mightybg
I am troubleshooting the ESC circuit. I have done continuity checks from the knock sensor wire to the ecm and it is good (0.5ohms). The engine running voltage unplugged is 4.86v(good I think). the problem i have is that if i leave it unplugged I am not getting a code43. I have driven the truck with the connector disconnected and I do not get a check engine light at all. I have a re-man pcm in the truck and it is the right one (16147060). Can this be caused by my memcal/PROM?
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