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The Trainer #121: Testing The Engine Control Module - Watch THIS Before You Order A Replacement!
#ecm #pcm #ecmtesting #ecmprogramming #ecmreplacement I’m betting that many of you have used an OE troubleshooting flow chart when diagnosing the cause of that DTC that turned on the Check Engine light. In many cases, the last line in the chart reads “Replace the ECM” - but before you do you just may want to watch this episode of The ...
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