Can a knock module cause the check engine light to come on?
 

Can a knock module cause the check engine light to come on?

It can cause a DTC if there is a problem with it, but it does not light the SES.

The knock module wont but the knock sensor will. GM decided to integrate the knock sensor into the block coolant drain plug. And when i drained the coolant to change my opti i didnt snap it on all the way and i was throwing a knock sensor/circuit code. I ran super rich for a while until i bought a scanmaster and figured out the problem.:mad: Hope this helps.



Chris

ok i think thats my problem, cuz i did a cam swap, obdi conversion and i think my check engine light comes on b/c of that...

Im gunna put the knock sensor in today! i hope it works! :D