I am the proud owner of a 1992 extra cab 4WD truck with the V6 engine. It now has 180,000 miles on it. The previous owner had repaired the wiring to the O2 sensor because the person who put the new exhaust in laid the wires on the exhaust pipe and they burned through. There are two wires and a woven shield around them. I think the shield is supposed to be connected to ground at both the sensor end and wherever the wires come from, but I don't know this for sure. Anyway, even though the wires were soldered together and the repair looks suspect, the check engine light doesn't come on and the truck runs well. How can I tell for sure though if the O2 sensor is being read properly by the engine computer? I suspect that it may not be because I think the mileage could be better. The reason why is that my brother has a 1992 extended cab 2WD truck with the 22RE engine and the full length bed. He bought this truck new and has put 331,000 miles on it and it still runs great. He gets 25 MPG driving 65 MPH. I get 19 MPG driving 65 MPH. Is this difference in mileage normal? Thanks, Eric
- posted
16 years ago