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Are '99 and '02 PCM's interchangeable?

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Old Dec 12, 2001 | 10:13 PM
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Default Are '99 and '02 PCM's interchangeable?

I have a spare '99 PCM that I would like to send to Ed Wright. I now have a '02 Ws6. Will the re-flashed '99 PCM work in my '02? Or did GM change the pin-out?
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Old Dec 12, 2001 | 10:32 PM
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Default Re: Are '99 and '02 PCM's interchangeable?

Nope, different. <img src="gr_sad.gif" border="0">
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Old Dec 12, 2001 | 10:49 PM
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Default Re: Are '99 and '02 PCM's interchangeable?

the pin out is the same

if done "right" it'll work
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Old Dec 12, 2001 | 10:54 PM
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Default Re: Are '99 and '02 PCM's interchangeable?

Hawk,

When you say " if it's done right " what exactly do you mean? Are you saying the '99 will work in my '02?
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Old Dec 13, 2001 | 12:17 AM
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Default Re: Are '99 and '02 PCM's interchangeable?

I've mixed PCM with different year vehicles.
the '99-up PCMs are all the same save for the program in them. I can program any '99up PCM for any year you want. <img src="graemlins/gr_xmas.gif" border="0" alt="[santa]" />
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Old Dec 13, 2001 | 12:22 AM
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Default Re: Are '99 and '02 PCM's interchangeable?

Mike,

Thanks for the info. I'm gonna have stage 1 heads with the '01 LS6 cam installed on the car pretty soon. I'm also gonna install a Vig.#7. Can you delete the torque management and raise the idle speed for the cam and converter?
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Old Dec 13, 2001 | 08:55 AM
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Default Re: Are '99 and '02 PCM's interchangeable?

[quote]Originally posted by Mike Morgan:
<strong>I've mixed PCM with different year vehicles.
the '99-up PCMs are all the same save for the program in them. I can program any '99up PCM for any year you want. <img src="graemlins/gr_xmas.gif" border="0" alt="[santa]" /> </strong><hr></blockquote>

Exactly. don't try to stick a 99 cal in an 02 box without matching up the right software.

The hardware is identical.
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Old Dec 13, 2001 | 01:51 PM
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Default Re: Are '99 and '02 PCM's interchangeable?

So the '98 hardware is different but all the rest are the same?

Ed told me at the time that we HAD to have a '00 core for my '00 car. Just another one of his 'ole wives tales I guess. <img src="gr_images/icons/wink.gif" border="0">
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Old Dec 14, 2001 | 12:27 AM
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Default Re: Are '99 and '02 PCM's interchangeable?

[quote]Originally posted by 02BlackWS6:
<strong>Mike,

Thanks for the info. I'm gonna have stage 1 heads with the '01 LS6 cam installed on the car pretty soon. I'm also gonna install a Vig.#7. Can you delete the torque management and raise the idle speed for the cam and converter?</strong><hr></blockquote>

Not a problem, just give me a call when your ready.

<img src="graemlins/gr_guns.gif" border="0" alt="[guns]" /> <img src="graemlins/gr_devil.gif" border="0" alt="[devil]" />
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