Been having this problem for a long time and now I really want to fix it. I was loosing timing like crazy down to 14 deg. during WOT and it's been killing me in power. I would get up to 6 deg. during idle.

I have the lt4 knock module in there, but can't really tell if it's real knock or false. Has anyone had a bad knock sensor? or a block sensor?

I have FLP headers with a 398 Stroker. NO exaust leaks, and no AIR with capped EGR. I am planning on replacing the sensors soon, but wondering if it could be something else

any suggestions?

thanks

Darko

 

If you are getting a constant 6* at idle or the retard goes up with the revs (just stabbing the throttle) your knock sensor is probably bad.

Ryan

 

Hopefully you are not experiencing real knock. I would splash in some 103 octane unleaded and see if anything changes. If not, then you can be reasonably sure its false knock.

Any vibrations or rattling going on that could be setting off the knock sensor?

 

Try race gas, if it persists it's fake. It sounds like a bad knock sensor. You might to go under there and check if the knock sensor is loose or rattling around.