After the Nelson tune, I got code 315 from a check engine light.. I had Autozone pull the code, bu they dont have the brainpower to erase it.. Is it the crankshaft position fault code? Will it clear itself after a few key cycles?

 

You will need to take it to someone with the appropriate software to do the crank relearn procedure. The dealer can perform this operation with the Tech 2 or you can phone around and see who else may be able to do it. I guess it only takes 5 minutes or so to do.

 

I dont get it, do they need to reprogram something or is it just a code that can be erased? We have a MODIS Snap-On scanner at my work, will it be able to get rid of the code or is it better left to the dealer.. I would rather avoid the dealer since they would probably charge me an hour labor for a 5 minute fix..

 

Did you get the crank relearn figured out?

I am not sure if the Snap-On scanner can do the crank learn or not. I have heard that it can and cannot? Maybe it depends on the options you buy with the scanner. Check it out as it sounds like a fairly easy thing to do if it has the capability.

 

Yea, I went to the dealership, sweet talked them, and they did it for free.. It was definatlely something I would not have been able to do with the MODIS- only something that can be done with the Tech 2..

 

Is it bad to drive the truck with this code illuminated? does it effect the truck?