ZR-1 Net Registry Forums - Thought on Headers

Quote:

Originally Posted by XfireZ51

Yes but there's air entering the system to light the unburned fuel.

mrzr,

Where do you hear the popping? From the rear or under the car?

I just replaced the PCV block connector at the Right Rear (driver side) of the moror. It was in bad shape and quite loose. I now beleive air was entering there and contributing to backfiring. Exhausts seem to now have quited down a bunch with the new PCV block connector in place.
My backfires seem to have stopped now. I am not sure this part really fixes this problem for sure. I just drove the car once so far so I don't know for sure yet. Does anyone know if a leaky PCV block connector could contribute to backfiring?
Thanks,
mrzzzr1