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Old Apr 23, 2006 | 01:48 PM
  #1  
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MRC5
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From: east coat SAUDIA
Default pcm. no comm.

i just dont know whats going on with my pcm.

i got REDUCE ENGINE POWER. after uploading new tune by LS1 EDIT. ...the guy in GM said he couldnt connecting with pcm by teck 2 . the PCM lucked ...???? or if im unluck the pcm is gone ;(

what do you think guys .??
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Old Apr 23, 2006 | 07:18 PM
  #2  
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disconnect battery for about 1 minute and try again

Also if the fuse is blown for the ADLC connector which also feeds the cig lighter nothing would be able to work over the ADLC
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Old Apr 23, 2006 | 10:45 PM
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we had thAT HAPPEN LAST WEEK AND THE PCM WAS JUNK
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Old Apr 24, 2006 | 08:43 AM
  #4  
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From: east coat SAUDIA
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Originally Posted by boosted_z06
disconnect battery for about 1 minute and try again

Also if the fuse is blown for the ADLC connector which also feeds the cig lighter nothing would be able to work over the ADLC
i did disconnect battery for a bout a day , but it didn't wrok ;( ...

i think my pcm is junk now ..

where can i get a new tuned pcm ?
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Old Apr 24, 2006 | 12:23 PM
  #5  
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Originally Posted by MRC5
i did disconnect battery for a bout a day , but it didn't wrok ;( ...

i think my pcm is junk now ..

where can i get a new tuned pcm ?

That's very unusual for the PCM to lock up during a download. Did you lose power on the tuning computer? Or did the battery on the car fall below 12 volts?

You could purchase a new PCM from your local dealership (some will warrantee it for the 8 year/80,000 mile warranty) but you would need to get your car there so they could load in the correct program (with their Tech 2) based on your VIN. Since you have a SC, you most likely have larger injectors so you would need to start over with a new program to get that car running again.

Good luck!
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Old Apr 24, 2006 | 06:06 PM
  #6  
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From: east coat SAUDIA
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Originally Posted by Mr Cowl Hood
That's very unusual for the PCM to lock up during a download. Did you lose power on the tuning computer? Or did the battery on the car fall below 12 volts?

You could purchase a new PCM from your local dealership (some will warrantee it for the 8 year/80,000 mile warranty) but you would need to get your car there so they could load in the correct program (with their Tech 2) based on your VIN. Since you have a SC, you most likely have larger injectors so you would need to start over with a new program to get that car running again.

Good luck!
the battery is new the volts in 13 ..and the uploading complete . after uploading the care wont start . and i got reduce engine power ..

i'll get the car to the gm dealership today .for a new pcm .
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Old Apr 24, 2006 | 10:34 PM
  #7  
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Originally Posted by MRC5
the battery is new the volts in 13 ..and the uploading complete . after uploading the care wont start . and i got reduce engine power ..

i'll get the car to the gm dealership today .for a new pcm .
Well then something happened to destroy your PCM. Good luck at the dealer.
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Old Apr 26, 2006 | 12:12 AM
  #8  
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Did you try to reload the original stock file or the tuned file?

If the car will run, even with reduced engine power, the PCM isn't dead. Does the TEC2 tool power up? Can you read DTCs, or perform other functions with the TEC2?
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