So, I went from Super happy to super frustrated again on the CEL....
I got the CEL cleared, and car ran fine. Except, after about 74 miles the CEL clicks back on and engine starts to run a lttle rough. Same Code - Knock Sensor P0327. I checked all the wiring, and no obvious change. I cleared the code and CEL off at 1st startup. I then unplugged the knock sensor, and CEL comes on immediately at start. Cleared the code again, and plugged the sensor back in and it was good for another 74 miles, then CEL again. I can't tell if the problem is my sensor, or the wiring I spliced in. The white wire to the sensor is shielded, and I've spliced in maybe 8 or 10 inches of unshielded wire. Can that be the problem? It would be hard to believe I had the wiring chewed through (giving me the CEL in the 1st place) AND a bad knock sensor at conveniently the same time....
would this length of unshielded wire be causing my problem? If so, is there a way to shield a wire that might work??
My path forward is to connect a new plug with pigtail to the sensor to check it. I hear that I should check resistance to be between 530-580 k ohms? Then check with multimeter set to AC, and tapping on the block to see if I get a reading? (you tube is great, but I never know if its the best place to get info...) I don't want to just start throwing parts at this, especially when it was so obvious the wiring was the original problem...
Is there another or better way to diagnose this issue?
Again, ANY help or input is appreciated...