i have a 2001 4runner, v6, 3.4l, 73000 miles, the CEL just came on and the code P1135 Fuel Air Metering popped up. i have done a little research, and understand that some people are calling this an o2 sensor problem, but others are calling it an A/F Sensor Heater Circuit (bank1 sensor1) problem. which is it????????
on my diagram it shows that this sensor is on the passenger side of the engine, maybe on the manifold itself???? (but on the upper side of the exhaust pipe(engine side not the tailpipe side)) right or wrong???
what is the the name of the part i need to replace this with, just an o2 sensor or something named A/F heated o2 sensor????
and where is the best place to find it??
thanks for all the help and any further help would be greatly appreciated!!!
