how to tell if ecu is bad

Hondata model coverage & ECU application questions.
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how to tell if ecu is bad

Post by juba »

I was gettin a code 8 before for tdc. Got a new dizzy car ran great after. Soldered a few wires together and changed plug wires and now i get a cod 4 for cyp or something like that. Everything checks out good. The flow chart says replace with a known good ecu to confirm if its the ecu. What if it still dont fix it? Is there away to test the ecu???
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Re: how to tell if ecu is bad

Post by Spunkster »

Try ECU in known good vehicle
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