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The only error code it throws is 1507, which means "Idle Air Control IAC Under Speed Error", but the IAC checks 10.1 ohms, and 12+ volts, which s good. It also threw an error code of 8000, but I can't find that code anywhere. I think it is an error of my cheapo scan reader.
In neutral, car revs up very slowly. On a slight downhill, it will get up to 35 mph, after a long time.
Dropped cats at headers, still ran very very weak.
Also, headers glow very red hot, almost white hot.
It acts as if ignition timing is very retarded, but of course there is no way to set the timing.
 
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