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#1
11-23-2010, 04:25 PM
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98 Tahoe 5.7 ecm/pcm relearn.
Does anyone have the steps on the relearn procedure when installing a new already flashed computer on a 1998 tahoe with a 5.7lt. My haynes or chilton books don't have it. Thanks
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#2
11-23-2010, 05:55 PM
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Re: 98 Tahoe 5.7 ecm/pcm relearn.
Never had to do this, but I'll relate what my '98 C/K service manual says.
1. Original knock sensor chip needs to be in the new VCM 2. Passlock needs to be reprogrammed. 3. CKP Variation Learn Procedure needs to be run. ( High-end scan tool required for this.)
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57 Chevy 210 65 Olds 442 Convertible (Another one sold) 75 GMC Vandura 3/4 Ton 1999 K2500 Old Body Style Suburban (Gone but not forgotten) 05 Dodge Ram 3500/5.9 Cummins 2012 Toyota FJ Cruiser
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#3
11-27-2010, 08:20 AM
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Re: 98 Tahoe 5.7 ecm/pcm relearn.
Quote:
Relearn should be auto matic when you drive it. Have you installed and started it and drove it? Any check engine lights? Why are you replacing it?
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Remember proper testing gives us the answer to many problems. MT
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