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Northstar Performance and Technical Discussion Performance discussions relating to the Northstar System (intake, exhaust, cam, etc.).

Cadillac Forums: Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
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Old 10-15-06, 09:07 AM
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Cool Re: Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?

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Originally Posted by XChoppers View Post
Can anyone describe the CKP System Variation Learn Procedure for a 2001 Eldo?
Does the ECU automatically "learn" the new sensors?

The parts came in today and I'm ready to install them in my wife's car.

Thanks everyone!
The crankshaft position system variation learning feature is used to calculate reference period errors caused by slight tolerance variations in the crankshaft, and the crankshaft position sensors. It should be performed after a pcm replacement, or any repair that disturbs the crankshaft to crankshaft position relationship.

You will need a scan tool to perform crank learn. If you have already replaced the sensors, driven the vehicle and DTCs P1336 or any mis-fire DTCs have not set, then you might not worry about it. ( it's up to you)
Have a nice weekend,
Frank T
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  #22 (permalink)  
Old 10-25-06, 01:48 AM
XChoppers XChoppers is offline
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Thumbs up Re: Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Ple

A BIG THANK YOU to the moderator and all in here for taking the time to help.

Due to time constraints we purchased the CPS Sensors and a fuel filter. Even though we have a lift etc in our shop/garage, it was decided that we would take the car to our good friends shop for the install.

Our "friendly mechanic" also ascertained that the problem was the above mentioned sensors and fuel filter, (or just read the printouts of the above posts).

Almost one week now, no more CHECK ENGINE light, stalling, hard starts.

A Huge Relief!

I normally support forum sponsors but because of time constraints had to secure parts fast. When checking this forums sponsors and links, I did find the BEST prices anywhere. My sensors were purchased at a local parts store for about $35.00 and $39.00 each.

I will now shop for the replacement tail light and dinged chrome strip that some jerk in a parking lot tapped me. Good thing he/she did not wait around. Again, this is my dream car, 2001 ESC, we found it 2 years ago with 18K miles, still smelled show-room new, and in car show condition.

Thank You all again!

Almost Forgot......I also read above about the Recall on the CPS Sensors. I called GM and they checked my VIN. GM stated that the Sensors had been changed on my car during the recall and on the cars original extended warranty.
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  #23 (permalink)  
Old 10-25-06, 02:24 AM
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Re: Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?

Glad you got it taken care of and thanks for the feed back. If there was a recall on the CKP's, that's news to me. Enjoy your Caddy.
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