PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

PCM compatability

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Old Apr 19, 2006 | 02:39 PM
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Default PCM compatability

Are PCMs vehicle and year specific?

For example if I want to replace my 2002 Corvette Z06 PCM do I have to use a PCM from another 2002 Z06 or can I reprogram a PCM from another Corvette or F body to work?

I'm going to be moving and I want to be able to send a PCM to my tuner for reprogramming while I keep another in the car to allow me to drive it. My tuner uses EFI Live for programming if that is pertinent.

Thanks,

Mike
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Old Apr 19, 2006 | 03:16 PM
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a 99-02 PCM is essentially the same hardware... F-Body, Y-Body, Truck ... so long as it's a V8 (may be some differences here or there though... I blieve it's 4.8,5.3 and 6.0 L trucks)

you can reflash to run any OS supported in those years (2003 may be hte same too but I'm not 100% sure)
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Old Apr 19, 2006 | 03:31 PM
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Jes at waitforme will know for sure. He has stacks of the things. Im pretty sure they are all the same too.
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Old Apr 19, 2006 | 06:33 PM
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Default PCM Compatability

Thanks for the info gentlemen.

I've sent a PM to Jes.

Mike
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Old Apr 19, 2006 | 07:12 PM
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Would there be any advantage of flashing an 02 F body PCM to a later date? As in better fuel calculations or maybe newer code could take more advantage of the faster clock in the 02+ PCM????
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Old Apr 19, 2006 | 08:47 PM
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The factory pcms are well within the range for Calculations to be handled fine. 100 Cpu load is well above 8500 rpm on a newer pcm.. Some are over 9500..
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