Thread: ECU Symptoms?
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Old 04-03-2011, 09:43 AM
ctonline
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Default ECM/ECU replaced, now with engine light on

I've replaced the ECM/ECU unit with a used one on ebay. The model car and year is the same but not the exact model number on the ECM/ECU unit. After I replace it the engine lights come on. I've had to go to a mechanic to do a diagnostic. When he put on the diagnostic machine the engine light goes away, however the light comes back on after turning of the engine. I was told to drive around 40 miles to reset it, but after driven for over 100 miles, it still has not worked on resetting the ECM unit it seems, and the engine light is now back. Any suggestion on how to get my engine light to go away to pass my State inspection? Much appreciated.
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