Quote:
Originally Posted by Ultramaroon
First off, it's not the plugs.
I suspect that while working on the engine, you may have accidentally damaged the knock sensor connector or wiring. "sensor high" is either an open, or short depending on the design of the system itself. Usually it means "open" (disconnected, burned out, wire cut...)
Find the sensor itself and then consider how the wiring may have been damaged.
If I was the shop, at a minimum, I'd plug in a known good sensor and fire up the engine. If it doesn't throw a code then the sensor went south. If it does, then it's the wiring. Buy a new sensor and be prepared to eat the cost. It's still cheaper than an oscilloscope.  |
correct, i just swapped the old plugs back in for troubleshooting purposes... the knock sensor is not known to go bad at 60K miles...and it just go happens that it happened after i did the spark plug change... the knock sensor is connected to the PCM which sits on top of manifold... i had to push that aside when doing the spark plugs, but there was enough slack in the wire... if it is the actual wiring to the PCM, i wouldn't even know how to troubleshoot it...