Crank sensor relearn

1998 PONTIAC GRAND PRIX
190,000 MILES • 3.8L • 6 CYL • FWD • AUTOMATIC
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HARRY61
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  • 4 POSTS
I have a 1998 Grand Prix that I replaced the crank sensor,After I replaced it I found out I had a blown head gasket,After getting that fixed I took it down to a local shop to have the case relearn done,The mechanic doing it said it wasn't accepting the relearn,He said that it could be a few things and to check all the plug ins on the motor,I checked them all there all good,He said it can even be the Ecu,Is there anything else i can check before before investing in a Ecu ?
Apr 3, 2016 at 4:33 AM
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HMAC300
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try resetting security system or another key if you have one it may be the security system causing problem. ecu will relearn as you drive. crank sensor as well
Mar 26, 2021 at 10:03 AM
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HARRY61
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My car don't have a security system!How long or how many miles would it take for the Ecu and the crank sensor to relearn ??
Mar 26, 2021 at 10:03 AM
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HMAC300
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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your car does have a security system they all do since mid 90's it relearns as you drive don't worry about it
Mar 26, 2021 at 10:03 AM