I have a '92 with 215,000 on the clock. For the last few months it has been acting like it is running lean in certain throttle positions; that is starting from a stop, applying some normal amount of throttle it stumbles alot and back-fires through the intake (pop-pop-pop). It is worse when the engine is cold.
After extensive research on this forum I changed the fuel filters, checked the plugs and wires and finally setlled on the TPS. I tested it according to the Chilton manual, which it failed. I bought a new one from Toyota, installed it to no avail. It runs the same or worse. I noticed that the sensor has a large amount of adjustment built into the mounting.
I was hoping someone here could explain the TPS Set-up for a 1992 3FE, or what else I should try.
Thanks.
After extensive research on this forum I changed the fuel filters, checked the plugs and wires and finally setlled on the TPS. I tested it according to the Chilton manual, which it failed. I bought a new one from Toyota, installed it to no avail. It runs the same or worse. I noticed that the sensor has a large amount of adjustment built into the mounting.
I was hoping someone here could explain the TPS Set-up for a 1992 3FE, or what else I should try.
Thanks.