toxo wrote:
The knock could be caused by it running like xxxx due to the other faults... or the sensor might have blown, or it might not be plugged in?
Sensor defo plugged in. Are these mass type knock sensors or the more refined ones? If it is a mass type I will knock on the block with an extension and multimeter attached to knock sensor/suitable earth to check operation. I havent got an oscilloscope so cant check the other sort. IIRC toyota operate the other sort at approx 7000hz. I know its not completely relevant but interesting none the less.