Will someone take a look at my log (hpt)
#22
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I agree with Frost 100%. A banging y-pipe will read as false knock, however it will not cause a P0327 code or constant knock retard. If the y-pipe was causing the knock retard it would probably only show up under moderate and heavy throttle input, where the y-pipe would bang the most. It looks like it's registering knock pretty much across the board.
#23
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I agree with Frost 100%. A banging y-pipe will read as false knock, however it will not cause a P0327 code or constant knock retard. If the y-pipe was causing the knock retard it would probably only show up under moderate and heavy throttle input, where the y-pipe would bang the most. It looks like it's registering knock pretty much across the board.