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PCM nightmare averted...(Long)

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Old Apr 5, 2003 | 05:01 AM
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Default PCM nightmare averted...(Long)

Just when I thought I was looking at buying another pcm to replace my "locked" one, a local dealer saved the day. I had scheduled my LS1 edit session for last Sat. Took my car to a dealer Sat morning to get it reflashed. They said everything went fine. Turned the car on and it idled smoothly at 950 rpms :skep: . That was the first sign of trouble. Went back to ask the service tech and asked him if he was sure it took the reflash. He again said it had taken the program. I asked him why was the car idling so good and why it wasn't throwing any codes. He said that the car's idle varied...
Put the car on the dyno at LG motorsports and they ran some baselines and attempted a few chages and nothing happened. :mad . Called the dealer to get the story and they said that they would not be able to reflash over a locked program :confused: . After a few days of trying to find a solution , I decided to give another local dealer a shot. The service tech said that they had run into that problem before and that they were sure they could reflash it. Took the car in today waited an hour and then got the car back. Spoke to the service tech and he said that he was sure that it had taken the reflash because it was not idling and ran like a dog. :) ( a good sign). Got in the car, turned the key, the car started, lived a brief life and died. It died every chance you gave it, at stoplights, slow turns. It took a tricky combination of brakes and throttle to keep the car idling. So all seems well and tomorrow I should have a fully tuned car. So for all the local people, Huffines Chevrolet in Lewisville can reflash "locked" PCM's. :thumbs:


[Modified by RunNE1, 4:03 AM 4/5/2003]
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Old Apr 5, 2003 | 04:02 PM
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Default Re: PCM nightmare averted...(Long) (RunNE1)

Any GM dealer with a TECH 2 can reflash a locked PCM.... :yesnod:
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