Computer reset instructions needed

1994 GMC SONOMA
20 MILES • 4.3L • 6 CYL • 2WD • AUTOMATIC
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ERICANH2221
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Just put a new motor in it need to reset the computer how do I do that?
Mar 14, 2020 at 6:31 AM
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KASEKENNY
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The easiest way on these vehicles to reset it is to unhook the battery for 30 seconds as it states in this attachment. That will clear codes but also force a relearn of adaptives.

However, this is not necessary just because you put a new motor in. Once the new engine starts and runs the adaptives will change to run off the new engine.

Let me know if you have more questions. Thanks
Mar 14, 2020 at 9:05 AM