PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

98 pcm on 02 ls1

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Old Feb 12, 2012 | 01:52 PM
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Default 98 pcm on 02 ls1

Can you put a 98 wiring harness an pcm on an 02 ls1?
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Old Feb 12, 2012 | 02:21 PM
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I dont see why not..as long as the PCM and Harness are the same.
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Old Feb 12, 2012 | 02:41 PM
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Ok. Cool
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Old Feb 12, 2012 | 08:20 PM
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That is a step backwards, but it can be done.
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Old Feb 13, 2012 | 02:33 AM
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Yes it can be done. You will need a 98 coolant temp sensor for the driver head. 98 is 3 wire, 99+ will have a two wire. Other then that it should be a direct plug in.
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Old Feb 13, 2012 | 05:06 PM
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Originally Posted by MontecarloDrag
That is a step backwards, but it can be done.
Agreed.
Originally Posted by 01ssreda4
Yes it can be done. You will need a 98 coolant temp sensor for the driver head. 98 is 3 wire, 99+ will have a two wire. Other then that it should be a direct plug in.
Agreed.
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Old Feb 13, 2012 | 06:39 PM
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GM 12551708..popular little sensor for only a couple years manufacture..lol
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Old Mar 26, 2012 | 05:43 PM
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What about the fact that the 98 harness has 3 plugs and the 99 for the inside pass kick panel? What's the extra plug control? How to make it all work?
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Old Apr 4, 2012 | 07:56 PM
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Thanks for the help guys...
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