LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Compression Test

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Old May 15, 2006 | 08:01 PM
  #1  
matLT1's Avatar
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From: Berkley, MI
Compression Test

I will be performing a compression test on my car tomorrow. I was curious as to what you guys did to disable the ignition and fuel system. I have read that you can simply pull the PCM BAT fuse and that will disable both. Have any of you tried this? Thanks
Old May 15, 2006 | 11:19 PM
  #2  
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From: Little Rock, AR
Re: Compression Test

Pulling the PCM BAT fuse disables both fuel and spark (since the PCM is basically disabled).
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