Originally Posted By: andrewp1998
OK, they misdiagnosed the ECU cause the engine light was on, ( I am told to buy one)then they replaced the ecu with one I bought,then it is the issue ( check engine light does not go off)
What was the exact alphanumeric DTC that was pulled from the ECM? Was it "Unknown"? (No, I'm not joking.)
If the dealership checked for TSBs, recalls, or Service News articles, what were their numbers/dates?