Crank Position Sensor Question
Thread Starter
Melting Slicks
Joined: Jul 2007
Posts: 2,697
Likes: 13
From: Kingsville Ontario
Crank Position Sensor Question
My 01 has been acting up this year and has died a few times recently with the last time resulting in a tow to get it looked at. They found it to be a fried crank position sensor which has now been replaced.
They are blaming it on the heat from the headers saying it could happen again in the future since the headers are real close to where the CPS is. I have LG Street long tube headers.
Anyone else had issues with this or know whether it is a common problem? Any recommendations on avoiding repeating this costly repair in the future?
They are blaming it on the heat from the headers saying it could happen again in the future since the headers are real close to where the CPS is. I have LG Street long tube headers.
Anyone else had issues with this or know whether it is a common problem? Any recommendations on avoiding repeating this costly repair in the future?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Hmmmmm,,,, Dont know how LG Header tubes are routed but,, I have stainless works headers on my 02 Z since 04 and I have NEVER had ANY wiring issues. That sensor is on the block and the wiring should be routed close to the block in a plastic covered loom away from any exhaust stuff. Unless it was misrouted or disturbed from its origional location, i find that statement hard to digest.
If your worried about it, find some heat shield fabrick and tape it on the wireing run.
If your worried about it, find some heat shield fabrick and tape it on the wireing run.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
How is the car running since you changed the sensor---Who changed it ?? Reason being is anytime the CPS is replaced you MUST to a "crank position sensor re-learn procedure" --so your ECM can communicate correctly again with it---Anyone with EFILIVE--HP or a TECH II can do it-
Ask if they did one---especially if it seems like its running off some--
Ask if they did one---especially if it seems like its running off some--
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
My 01 has been acting up this year and has died a few times recently with the last time resulting in a tow to get it looked at. They found it to be a fried crank position sensor which has now been replaced.
They are blaming it on the heat from the headers saying it could happen again in the future since the headers are real close to where the CPS is. I have LG Street long tube headers.
Anyone else had issues with this or know whether it is a common problem? Any recommendations on avoiding repeating this costly repair in the future?
They are blaming it on the heat from the headers saying it could happen again in the future since the headers are real close to where the CPS is. I have LG Street long tube headers.
Anyone else had issues with this or know whether it is a common problem? Any recommendations on avoiding repeating this costly repair in the future?
Thread Starter
Melting Slicks
Joined: Jul 2007
Posts: 2,697
Likes: 13
From: Kingsville Ontario
Thanks for the feedback guys. I got the car back from the shop yesterday and drove it for about an hour and a half last night. All seems well but this was an intermittent problem before so the jury is still out. I'll have to get it on the hoist this weekend to check out the wiring. They did not mention replacing the wiring, just the sensor. They also mentioned something about having to manually calibrate and complaining about the rev limit missing in the programming. I have a message in to my tuner to ask about that.
Thread Starter
Melting Slicks
Joined: Jul 2007
Posts: 2,697
Likes: 13
From: Kingsville Ontario
How is the car running since you changed the sensor---Who changed it ?? Reason being is anytime the CPS is replaced you MUST to a "crank position sensor re-learn procedure" --so your ECM can communicate correctly again with it---Anyone with EFILIVE--HP or a TECH II can do it-
Ask if they did one---especially if it seems like its running off some--
Ask if they did one---especially if it seems like its running off some--
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Could be that the person --that originally did your tune "locked it" which means no one else but THEM can un-lock your ECM to do any reflashes---
However--the relearn is not done with the tuning software --but instead it's done with the "data logger" software-
try going to a shop with a Tech II----you can find what the re-learn is and how its done by going to the EFILIVEwebsite and look for it in the tutorials--
Again the re-learn just re-alligns the sensor to the crank-clocks it correctly---Required when changing the sensor---or replacing internal parts such as the cam or crankshaft---
