Co-Man-Che
Well-Known Member
I bought a 1991 Toyota pickup with the check engine light on. When I got it home and pulled the codes it read codes 21 and 25. One of which is for the o2 sensor and the other was a lean fuel mixture code. After checking out the wiring for breakage, my next step is to replace the o2 sensor. I have a good used one in my garage but it is for a later model truck. They look the same but the plugs are different.
So here's my question, can I splice the old plug on to the newer sensor? It seems that Toyota must have the changed the plug for a good reason so you cant interchange the sensors but when a new sensor costs $200 from the dealership, I want to explore my options first.
So here's my question, can I splice the old plug on to the newer sensor? It seems that Toyota must have the changed the plug for a good reason so you cant interchange the sensors but when a new sensor costs $200 from the dealership, I want to explore my options first.