PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

PCM Swap questions.

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Old Apr 7, 2006 | 04:48 PM
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Default PCM Swap questions.

I want to know from the guys who have done it. I have searched and not really found what I am looking for. I am building the car in my sig. Its a 98 Z28. I want to be able to use the 2 or 3 bar SD features of the tuning software available. I am interested in swapping the PCM out of my car that that of a 2000 Z28.

What has to be done? Just the PCM and engine harness? Or do I have to change all the under dash harnesses and guage cluster and all that? I dont mind spending the $$$. I figure it will be cheaper than running BS3. This is my street car first, race car second.

Any help is appreciated. Thanks in advance.
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Old Apr 7, 2006 | 04:54 PM
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Definately you will need the PCM, Engine Harness, and Dash Cluster ... weather you need a different BCM or Dash Harness, I do not know.

If you are swapping OS, why not go all the way up to 2002 or at least 2001.
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Old Apr 7, 2006 | 05:06 PM
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I dont know. I found a 2000 PCM and harness for $350. Swapping the PCM engine harness and dash cluster is no biggie. I just dont want to have to change the under dash harness if I dont have to. I guess if it is a must I could do a 10pt cgae while it is out. hmmmm.
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Old Apr 8, 2006 | 05:27 PM
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Does anyone know 100% for sure about the under dash harness? I am ready to get started on this an need to know ASAP. I know I need the newer PCM, Engine harness, and Gauge cluster.
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Old Apr 9, 2006 | 09:38 AM
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Surley some has done this and can chime in with specifics.
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Old Apr 9, 2006 | 10:20 PM
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Okay. It is looking like its gonna be BS3 for me.
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