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Old 04-23-2015, 04:34 PM
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Default computer flash question
Thinking of getting a pcmforless flash. Is this plug and play or will I need to do a relearn
 
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Old 04-23-2015, 06:14 PM
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If you send in your PCM, have them flash it, then reinstall the same PCM back into the truck, you should not need a relearn. If you exchange your PCM or elect to get another PCM, you will need to do a relearn.
 
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Old 04-23-2015, 06:47 PM
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OK, thanks, thinking of using the one from my now dead 98 for my 2000
 
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Old 04-23-2015, 06:49 PM
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Should work. They can program the PCM with the VIN from the 2000 so it will work out of the box, but for optimum efficiency, you'll need to do the CKP relearn.
 
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