Ok so I bought this Z28 with low mileage the problem is the knock sensors keep turning the mil light on. I'm sure you guys have seen this issue before. I've replaced the knock sensors,The harness,even the ecm. Took it to the Chevy dealership that's were it is now. No one can figure out why the dam knock sensors keep throwing codes 0337 and 0 something idkl.ow voltage codes.
I feel like I've just thrown away 10k dollars.could someone please help me? My email is onechad2016@gmail.com if any suggestions or possible fix. As I will be offering a 100.00 reward if it leads to the fix of my problem with this s****... Car.

 

Wrong forum.... "Site Help and Suggestions" is for help/problems with the site, not tech issues with vehicles. I'll move this to the correct forum, where you are more likely to get help.

 

Did you possibly mean P0327 - Knock Sensor (KS1) Circuit? Per the factory service manual, there is no P0337.. What is the low voltage code, if that is what you meant by "0 something idkl.ow voltage codes."?

 

P0327 and the other one low voltage,yes sorry My notes are in the car at the dealership. They can't figure out what keeps setting the codes.can I bypass these knock sensors? The engine runs great and only makes slight ticking noise till warmed up. Codes set after second or third engine cycle.

 

The code was for the KS1 sensor. Why did you replace all the other parts? Did you review the diagnostic logic chart in the factory service manual? Who installed the new sensors? The code can be set if they are loose or over-torqued.

Free download of 2000 factory service manual (should be same as 2001):

http://www.mediafire.com/?40mfgeoe4ctti

 

It was for both sensors. Both codes p0332 and p0337 well the dealership took the intake off and said they were torqued to 8ft.lbs. so they torqued them to 15 ft.lbs. problems still there after that. Now I guess I'm stuck with the removals of the intake and no problem solved. Ughhh. I heard on YouTube that when you replace the knock sensors you got to rev the engine to 5k rpm two or three times for the computer to recognize the acceptable values of the knock sensors.is that true?

 

The 2000 factory service manual shows the KS torque spec as 15 newton-meters / 11 pound-foot. Maybe they changed it for 2001 ???

Also indicates that after installing the KS, "Perform the idle learn procedure." That is described on page 6-1840 of the manual.