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Crank sensor relearn

Tiny
HARRY61
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 190,000 MILES
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?
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Sunday, April 3rd, 2016 AT 4:33 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
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
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Friday, March 26th, 2021 AT 10:03 AM
Tiny
HARRY61
  • MEMBER
  • 4 POSTS
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?
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Friday, March 26th, 2021 AT 10:03 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Your car does have a security system they all do since mid 90's it relearns as you drive don't worry about it
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Friday, March 26th, 2021 AT 10:03 AM

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