Am I right in saying if I've got a higher voltage going to the sensor it could be a short from another wire into the EOT loom or most likely the ECU is the issue? Because my car things it's cold that means the output of the sensor must be a higher voltage something like 4 volts plus??
Another theory could be on the return to the ECU another system could be shorting into the EOT wiring?
Any of this sound logical