my knock sensor is wired up, but when i drive for about 5 mins the cel comes on. if i turn off the car and turn it on again it goes away until i drive another 5 mins. it says the code is the knock sensor, but even when the cel is on, the vtec still kicks in. any idea?

 

had the same issue. are you running premium gas?

 

yea running 93. if my mph's stay below 50 the cel won't come on. i tried grounding the knock sensor wire, still no help.

 

make sure its hooked up correctly. get a voltmeter and check for continuity from the connector plug to the ecu pin D3 for obd1. If its wired correctly then try another knock sensor.