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Old Jun 6, 2010 | 02:11 PM
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1994 Chevy S-10 Blazer Tahoe Lt
4.3l CPI Vortec w/ 4L60-E 4x4 push button tranny

I have been having problems with transmission shifting manually but not automatically so I may have narrowed it down to a failed ECU. The question now is with a OBD1 system would I be able to put a used one in from a salvaged truck without it needing to be reprogrammed.
 

Last edited by hill1; Jun 6, 2010 at 02:13 PM.
Old Jun 8, 2010 | 01:33 PM
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Hey now I still need some help here. I know there some ECU gurus out there.
 
Old Jun 8, 2010 | 06:50 PM
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You could pull a PCM from a junkyard truck. Would probably need a CASE relearn done.
 
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