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So I picked up a 2006 trailblazer 4.2 and the dealer said that they didn't think anything was wrong but that they had taken the aftermarket remote start off as it was causing problems. So I drove it home rest of the day and next day runs good except the gas cap light came on. But was fine. Next morning I get up to move it to let the girlfriend out for work it starts and stalls in about 10 seconds, and won't turn over .about a minute later fires up and is fine. Drove to work and back no issues. Then this morning I start it and it dies again I back it in the drive and it dies again.a minute later fires up and runs for 20 minutes until I shut it off.

I get the P0601 code. So I bought a remanufactured PCM. I would think when they removed the remote start they took all of it off.

Is changing the PCM the right thing to do next ?
 
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