Originally Posted by
jamesmonter2
would changing a fuel filter or air filter help any of this issue? Also if i cut out the connector and just hard wired the oxygen sensor in would it increase the voltage. I know there would be less resistance over the harness, in-turn increasing the voltage?
No that will not help. Its a simple circuit. Power goes from the RCM through the heater and up to the ecu. That's it! You either have a bad connection on one of the wires a bad heater or a cooked ecu. You need to compare your voltages to the known good sensor sitting right next to the bad one. Now do it!