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Feb 1, 2008 | 09:30 AM

WKMCD

Thread Starter

Race Director

Joined: Dec 2004

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From: Haymarket VA

PCM's

I'm going to upgrade the PCM (re-pin the damn harness) in my 98. Which year should I use that will give me the best tuning capabilities?

Never mind. It looks like 01-02.

Last edited by WKMCD; Feb 1, 2008 at 09:43 AM.

Feb 1, 2008 | 01:36 PM

doc@EFIAlchemy.com

Cruising

Joined: Jan 2008

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From: Jacksonville Florida

Any 99-02 GM V-8 (512 kb) pcm will do. There were multiple hardware numbers over the years. The quick reference check is on the connectors it will read "Blue" and "Red." If you see any other color combo it is not the right pcm. Hint, avoid the vette / performance tax by looking for a lowly truck pcm. Same hardware, most recyclers don't know the difference though.

Feb 1, 2008 | 01:42 PM

WKMCD

Thread Starter

Race Director

Joined: Dec 2004

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From: Haymarket VA

Quote:

Originally Posted by doc@EFIAlchemy.com

Great tip Doc. Thanks,

Kevin

Feb 10, 2008 | 10:27 AM

edcmat-l1

Melting Slicks

Joined: Jul 2006

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From: Chesapeake Va

I would stick with the 01/02 as they have a better VE table, and no secondary VE.
Just my .02, and thats probably all its worth.

Feb 10, 2008 | 12:27 PM

0euro@EFIAlchemy.com

Former Vendor

Joined: Apr 2007

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From: Jacksonville Florida

Quote:

Originally Posted by edcmat-l1

I would stick with the 01/02 as they have a better VE table, and no secondary VE.
Just my .02, and thats probably all its worth.

The 99-02 PCM hardware is the same, We can program any Operating System we choose into it, the model year of the vehicle that the PCM came out of is irrelevant as long as it is a 99/02 Red and Blue PCM.

Feb 10, 2008 | 12:46 PM

JUSTIFIED C5

Racer

Joined: Jan 2004

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From: New Market Mn

A plug and play harness would be cool, be able to plug into factory harness on one end and then plug in new style ecm, has this ever been done? Do they exist?

Feb 10, 2008 | 12:59 PM

0euro@EFIAlchemy.com

Former Vendor

Joined: Apr 2007

Posts: 1,331

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From: Jacksonville Florida

Quote:

Originally Posted by JUSTIFIED C5

A plug and play harness would be cool, be able to plug into factory harness on one end and then plug in new style ecm, has this ever been done? Do they exist?

Unfotunetaly they do not exist, we actually made one but the problem lies in the male connector that is part of the PCM, Delphi does not make them anymore so to get them the cost would be outrageous.

Feb 10, 2008 | 01:31 PM

JUSTIFIED C5

Racer

Joined: Jan 2004

Posts: 422

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From: New Market Mn

I see, that we be expensive. My friend swapped his pcm on 98 to new style, quite a long process re-pinning all wires. I would like to do mine so we can put the roadrunner on it.