#code 52 knock sensor

[jacktoff69]

so i start the runner and there isnt a check engine light till i start to drive it some where is that a normal knock sensor error from the tired wire being brittle or is there an actual problem.... i recently advanced the engine to 12deg. or 10deg. i believe... could this be the culprit.

 

[hobiesbestfriend]

I had this exact same thing happen to me on a 22re. It turned out to be the knock sensor itself wasn't threaded in tight enough to the block and would vibrate a bit or maybe create a poor ground when the vibration from driving kicked in and the light would come on. 1/4 turn more and no more light. Might be the problem.

If you think the advanced timing is the issue, turn er back a few degrees and see if the problem persists.

Loose, brittle wire would be the problem only if not enough wire to carry the signal or it was shorting/grounding out somewhere along the way. Splice a chunk of new wire in there and be done with it.