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Flashing Gm Computer

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Old Dec 29, 2004 | 04:44 PM
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Default Flashing Gm Computer

I'm Looking For Some One That Can Flash My 98 Gm Computer. I Have A 1942 Ford I Put A 99 Ls1 And 6sp Trans In I Used A Painless Wiring assembly And The theyTold Me To Us A 98 Computer And Now I Need It Programed. I'm In Southern Ca. Can You Help

Last edited by DEV; Dec 29, 2004 at 04:57 PM.
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Old Dec 29, 2004 | 06:11 PM
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98's have slightly different pin assignments. a 99 or newer pcm won't be compatable with 98's. However, if you can get wiring diagrams for both years you should be able to repin the 99 and make it functional.
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Old Dec 29, 2004 | 06:37 PM
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The painless harness uses a 98 computer, it will plug into any ls1, just make sure you have the correct ECT sensor.

what injectors do you have on the motor? if 99's you will want to program that into the computer as well, as the 98's are larger than the 99's

Ryan
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