drivers side, after catalytic converter.
It is behind the catalytic converter
which sensor is for bank 1 sensor 1 on a 2006 nissan xterra
Before the catalyst, driver side.
passenger side first sensor before cat
Bank one is the side of the engine with cylinder #1. Sensor 2 is after the catalytic converter.
The 1999 Chevrolet Tahoe exhaust diagram, for bank 2, can be obtained from most Chevrolet dealerships. The diagram can also be found in the owners manual.
Trouble code P0135 means:O2 sensor heater circuit malfunction (Bank 1 Sensor 1)
Standing in the front of the engine: Bank 2 is the left head and 02 sensor 1 will be the first and closest sensor in the exhaust pipe were the pipe hooks to the engine.
I have just found this. I have the same truck and the same problem. Bank 1 means its on the driver side and sensor 2 is the rear sensor. They come off the exaust.
Is this bank 2 sensor 1 or sensor 2?
That should be the O2 sensor just before the catalytic converter.
Bank 2 is the passenger side of the engine. and the 02 senser is screewed into the exhaust pipe on that side. Work your way back to the muffler and you will see it.