2003SilvSS Posted March 8, 2005 Report Share Posted March 8, 2005 I installed my PCM from Bryan at PCMforLess and now my Check Engine light is on. I'll tell you exactly what I did, in the order I did it. 1. Removed Negative battery Terminal 2. Removed Original PCM 3. Installed New PCM 4. Replaced Negative battery terminal 5. Attempted to start, but would not. 6. Did the relearn on anti theft like the instructions said 7. Executed relearn and vehicle started fine. After I started the truck, the check engine light stayed on. It never flashed, or anything. I shut the truck off several times in the next 30 mins and it stayed on. It comes on as soon as the key is on the ON position and never goes off. I tried probably half a dozen times to start the truck before the relearn process. It would hit, then die. Every time. Any ideas? The rest of the truck is bone stock. The check engine light has never been on til now. I did not install the rubber gaskets on the PCM. It was cold outside and they were not cooperating. I figured this next weekend I'd put them back on. Brian Quote Link to comment Share on other sites More sharing options...
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