Hi !

I have a MY00 and have recently had an 22 CEL code coming up every now and then. From what I have read this is a knock sensor code.
Before this code started appearing the car was also stalling and idling very low - sub 500rpm)

My car has some basic mods - unichip-3" turbo back exhaust- vf23/4-PWR TMIC.

I used to get the car tuned by Brett at PSi but that cant happen anymore, so I took the car to Tim Slacko. He proceeded to retune the car and tell me how much brett had stuffed up the configuration of the unichip and charged me about $400 and also replaced the leads. This fixed the idle problem somewhat, it still is to low and lumpy.

Then the error code started coming up, so I took it back. He couldn't fix, so now I am wondering is it as simple as replacing the knock sensor?

ATM car drives fine when the Check engine light isnt on, but when it comes on which is now most of the time the car will not rev smoothly to redline, it splutters at about 6k-7k.
I have tried clearing the codes, always comes back as a 22 CEL.

Any help would be great

Thanks
Jamie