Hello, New member here.
I have a 89 Montero SWB 3.0 v6 5 speed 4wd with 135,000 mi
It was running great for the first year I had it, then all of a sudden it began to run very rough. I replaced the spark plugs, plug wires, fuel filter, o2 sensor, fuel pressure regulator, timing belt, and the ECU. I also cleaned the mass air sensor and the idle air control valve.
It does not run any better. It is running extremely rich, and I am getting terrible fuel economy.
I took it to a garage, and they could not pull any codes, and could not figure out what was wrong with it.
My only guess from here is fuel injectors... Anyone have any other ideas?
Thanks!
I have a 89 Montero SWB 3.0 v6 5 speed 4wd with 135,000 mi
It was running great for the first year I had it, then all of a sudden it began to run very rough. I replaced the spark plugs, plug wires, fuel filter, o2 sensor, fuel pressure regulator, timing belt, and the ECU. I also cleaned the mass air sensor and the idle air control valve.
It does not run any better. It is running extremely rich, and I am getting terrible fuel economy.
I took it to a garage, and they could not pull any codes, and could not figure out what was wrong with it.
My only guess from here is fuel injectors... Anyone have any other ideas?
Thanks!
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