Help - cutting out
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Intermediate
Joined: Nov 2004
Posts: 40
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Help - cutting out
My 1992 LT1 runs for about 30 seconds then seems to either die completely if it is idling or if it is revving it seems to lose power and will die if you don't rev the nuts off it. I checked the codes and it gave C12 then H43 . I then tested the knock sensors giving 3800 ohms (ok by book ) and 4.8v supplying them. With both connected you get 1.55 v at ecm whilst stopped and when running 1.73v at ecm on pin C8 (dk blue wire ) but it still dies (is this correct ? it's not quoted in the book ). Can anybody give me some help in curing this fault .
