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JB's chevy

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JB's chevy New Member

JB's chevy

Posted
Posted

I just bought this truck in early march. But anyway. I noticed that when keying up that the check engine light did not light up(key on engine off). so I thought i'd better check it for dtcs. I found that the light is out and I have a p1336 dtc (crankshaft variation not learned) in the computer. I do not not know if the truck has the original computer it has 152000 miles. I was just wondering if this code was a big deal or if it was ok. The truck seems to run great no misses or hesitation. Should I take it to the dealer to have it looked at?

Mike G Enthusiast

Mike G

Posted
Posted

First off, welcome aboard.

 

Secondly, I would search in the tech/motor forum for the trouble code. If everything is working good, keep driving her. I have 180k on my truck with the original computer, so I don't think you have a concern there.

--Mike

JB's chevy New Member

JB's chevy

Posted
  • Author
Posted
First off, welcome aboard.

 

Secondly, I would search in the tech/motor forum for the trouble code. If everything is working good, keep driving her. I have 180k on my truck with the original computer, so I don't think you have a concern there.

--Mike

 

thanks for the welcome, this seems like the place to be when it comes to these trucks. also thanks for the reply and advice.

-Jack

mcreyaufmiller Senior Enthusiast

mcreyaufmiller

Posted
Posted

This is an easy fix. It sounds like someone has replaced the computer with maybe a tuned unit. CKS Relearn is a simple process, all you have to do is plug it in to a diagnostic computer like the GM Tech system or a good Snap-on unit, run the relearn procedure and all is good. 5 minute process.

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