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PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

what years are alike?

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Old Jul 14, 2005 | 01:15 AM
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chpmnsws6
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Default what years are alike?
PCM wise, what years are about the same?

its-
94-95
96-97
98
99-00
01-02
then how about the ls1 and ls2 GTO?

how different are the PCM's between them all?

any insight would be VERY helpful
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Old Jul 14, 2005 | 07:51 AM
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99 and 2000 arent the same from waht i have seen in the tuning files and tuning each year
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Old Jul 14, 2005 | 09:09 AM
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Are you referring to pin locations on the PCM harness, specifically?
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Old Jul 14, 2005 | 01:11 PM
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I reflashed my 2000 O.S. to a 2002 using EFILive. I believe you can do that to a 99 as well. 2003's and above need a different PCM altogether I'm pretty sure.
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Old Jul 14, 2005 | 01:23 PM
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99-00 and 01-02 are the same ECM, but the parameters in the program are different. You can rewrite a 99 to an 02 though. Pin wise they are the same, the 99-02.
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Old Jul 16, 2005 | 10:24 PM
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Originally Posted by SMOKINV8
Are you referring to pin locations on the PCM harness, specifically?

pin location AND how the ECM runs. like any differences throughout the years
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