"92 s10 keeps throwing knock sensor codes but only when the engine is cold. I replaced the knock sensor with one I got at Auto Zone and checked the voltage at the connector, I got 3.9 volts, would that cause the computer to throw a code? The colder it is the longer the service engine light stays lit. Then it will come back on the first time the thermostat opens until the engine reaches full operating temperature. Help! I'm lost here. No one seems to be able to figure this out.
Any help, or suggestions (other than high explosives) woud be a big help.
Thanks,
N.M.W.B.A.o.O.