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Old 05-31-2014, 12:07 PM   #12
slenderman
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Join Date: Jan 2013
Location: SouthCentral PA
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Replaced one non-related fuze, cooling fan 2 (30A).
Backprobed ECM, 12V is there.
Rechecked injector connector gray wires, the 12v is there (only for a second when IGN is on...duh).
Reassembled everything and started it, stumbled some, then smoothed out into a condition where it runs good with throttle, and surges about 200 RPM when off the gas. One code set: P0200 (random misfire).
Test drove it. Continued the above behavior for about 3 min, then stumbled a lot, kept it running with some throttle. Died on me a few times, restarted and limped it back home with a lot of stumbling, and smelling unburned gas. 3 codes set: P0200, P0300 (as before) and a P0507 (idle air control RPM too high).
I'm now leaning towards the ignition system.
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'99 GL coupe, LD9, AT, A/C, 137k (it's ALIVE)
'99 GX coupe, LD9, AT, A/C, 242k (sold)

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