I have a 1993 Silverado 2wd, with the 5.7 TBI, with auto trans. My question is, I want to
install a 'gear drive' timing set. Problem is, all of the gear drives I've looked at say "Not to
be installed with knock sensor. Can the knock sensor be disconnected? No other mods
have been made.
The reason you can't use a gear drive is the knock sensor will pick up the whine the drive makes and the ECM will see that as engine ping and start to retard the timing to make it stop. You can disconnect the knock sensor but it will turn on your check engine light and fuel mileage and performance will suffer. I have heard of some guys taking the knock sensor out of the block and zip tying it to the harness, but they say it can cause a serious pigging problem. My advise is go to a dual gear and chain set if you need a timing chain replacement.
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