Crank relearn when is it neede?
- Thread starter Smitty82
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dave_erald
Live the dream, or don't, your choice...
Vortec motors automatically relearn everytime you wing it over 2000rpm. You would get a error code if its not correct after say swapping a distributor, or other mechanical swap or tinkering. And the 8bit computers in the TBI trucks aren't that smart so not even a concern
On newer vehicles (or possibly these Vortec trucks if you've done the 0411 swap, not sure) a crank relearn is a common practice after a performance tune, or any other incident that would require swapping PCMs. With the factory Vortec black box computers, it's not necessary.
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