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Showing results for tags 'ECM reset'.
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Hi Everyone. I have a 2010 Chevy Silverado with a 5.3L engine it. Up until recently, it ran fine. Around mothers day my ex pulled one of the wiring harnesses Out and cut approx 12 wires. I was unaware at the time and the truck was running so it had not been fixed. Recently he reached in through the driver's side wheelwell and pulled off the ECM, slightly damaging the plastic retainer clips. After discovering all of this, I found the ECM and plugged it back in and put some zip ties on it hoping for a miracle. But in addition,, After disabling my vehicle, and while I was fleeing from him, I lost the chipped key that I had been using to operate vehicle. I had a second key but the chip was not programmed to computer. When I made it to the vehicle, and before I knew the ECM was missing, I programmed this second key using the 3/10 method. The key now stops the alarm, and turns on dash lights etc, but wouldn't start truck. Then we discovered the ECM absence, plugged it in but with the same results. I'm unsure what to do next.
