knock sensor

[ali1202]

had a slight fault with my 197 yesterday like a flat spot when cold:thumbdown: wouldnt rev up so i have checked on my works diagnostic and there is a fault stored with the knock sensor is this a comon fault with the 197s?

 

[ryan197]

is it an active code, as all 197/200 have flat spots poor running when cold

 

[ali1202]

static fault knock sensor.unable to clear the fault says open/short circut.didnt have time to have a look at the live running data.but visualy checkd the wireing going to the sensor an all look ok no chaffing.

 

[vusiman]

I had the same error for knock sensor and it turned out that was fried ( completely broken) the car was running fine I couldn't tell it was something wrong. Installed a new one and the error was gone no improvement though. The engine was running as before.

 

[ali1202]

checked the sensor by useing an osiliscope and taping the engine block next to the sensor and found the readings all over the place and wouldnt settle so yip sensor is faulty!bought a new sensor and fitted it the fault cleared no prob.i found the car was running a bit better after this aswell.