LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Out of the blue, DTC16, DTC18, DTC51

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Old 08-14-2008 | 02:51 PM
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wrd1972's Avatar
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Default Out of the blue, DTC16, DTC18, DTC51

Car has been running great, then all of a sudden I go to start and get these codes. Engine cranked and cranked and did not fire.

Turn the key off then attempted to restart and it fired right up. I understand that DTC16 is Opti-Low res pulse, DTC18 is injector circuit and DTC51 is PCM programming.


Car is running fine now.
Was this just a wierd fluke?
Old 08-14-2008 | 03:01 PM
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Only one way to find out, clear it and run it again. If they come back they are legit. Sucks though, I just finished the ole' code 36 deal (opti again, just high res pulse not low).




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