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

where is the PCM Ground?

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Jun 22, 2005 | 11:32 PM

#1

SUTTERERMAN85

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Joined: Mar 2005

Posts: 142

From: Bedford, TX

where is the PCM Ground?

any body help me with this? when i have datamaster on, some times my DTC chart gets random codes and lights up like a christmas tree. i am wondering if i have a bad PCM? any ideas?

thanks
nick

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Old

Jun 22, 2005 | 11:40 PM

#2

luckyou03

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Joined: Mar 2005

Posts: 1,076

From: Memphis, TN

Re: where is the PCM Ground?

I'm not sure about your problem, but the pcm ground wire is by the starter on the passenger side of the block. Might be dirty or something.

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Old

Jun 22, 2005 | 11:56 PM

#3

SUTTERERMAN85

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Joined: Mar 2005

Posts: 142

From: Bedford, TX

Re: where is the PCM Ground?

thanks
nick

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Old

Jun 23, 2005 | 12:04 AM

#4

luckyou03

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Joined: Mar 2005

Posts: 1,076

From: Memphis, TN

Re: where is the PCM Ground?

This Picture should help. Starter on the left, knock senser on the bottom right.

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