would small exhaust leaks make the Knock S. pull timing?
04-12-2006, 12:59 AM
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would small exhaust leaks make the Knock S. pull timing? curious, i have a small exhaust leak and i cant seem to find it, would this pull back my timing, and if so would an LT4 knock module fix it?
04-12-2006, 08:10 PM
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I would think that the KS is only able to pick up harmonic/vibrations as sensed through the block. I have a Chilton manual and I once read the procedure for testing a KS is to tap on the side of the block with a screwdriver to see if any timing was pulled. I would hook the car up to a scanner and see if any timing was being pulled before I tried a new KM.
04-12-2006, 11:04 PM
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WAIT!!!!!!!!!!!!!!!!!!!! I never heard of a header leak causing a knock retard but a set of long tubes can cause a knock retard..... If you are getting knock take it to a pro to get it checked..... You might have something going on internally that you are not aware about. BUT how do u know u are pulling timing or knock.......Do u have a six speed or auto? Did u change something recently?
04-12-2006, 11:27 PM
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Originally Posted by 1SLO6
WAIT!!!!!!!!!!!!!!!!!!!! I never heard of a header leak causing a knock retard but a set of long tubes can cause a knock retard..... If you are getting knock take it to a pro to get it checked..... You might have something going on internally that you are not aware about. BUT how do u know u are pulling timing or knock.......Do u have a six speed or auto? Did u change something recently?
