bank one is the side where number cylinder is sensor 1 is before the cat sensor 2 after the cat
iirc sensor 1 bank1 is a pre cat lambda sendor. Its the first one visiable on the manifold/downpipe from the engine before the catalytic converter. you just undo the multiplug and remove the sensor with a spanner turning the whole sensor anticlockwise, screw in the new sensor, tighten it up and reattach multiplug.
The Northstar engine uses two O2 sensors. Sensor 1 is located on a bung in the exhaust after the manifold, but before the catalytic convertor. Sensor 2 is located after the catalytic convertor. It's that simple.
Bank 1 is the bank that sits closest to the front of the vehicle. Bank one is the bank with cylinder # 1. You have 4 oxygen sensors, (bank 1 sensor 1, bank 1 sensor 2, bank 2 sensor 1 and bank 2 sensor2). Follow the exhaust from the head of bank 1. The first sensor you come to is sensor 1, the second is sensor 2.
Bank 1 sensor 1 is upstream bank 1 sensor 2 is downstream
Check the tubing going from the air filter to the intake manifold to see if it has come loose. This might account for extra air going into the intake manifold than the computer is aware of. Otherwise it may be due to a faulty(or dirty) MAP/MAF sensor. Another possible cause is from low fuel pressure due to restricted fuel lines or a bad fuel pump.
Bank one sensor two refers to the oxygen sensor. The bank one sensor two oxygen sensor is on the front side of the engine, after the catalytic converter.
Is this bank 2 sensor 1 or sensor 2?
bank 2 sensor 2 front bank after the cat
which sensor is for bank 1 sensor 1 on a 2006 nissan xterra
Bank 1 Sensor 1- driver's side exhaust pipe Bank 1 Sensor 2-right before catalytic converter Bank 1 Sensor 3- right after catalytic converter Bank 1 Sensor 1- passenger side exhaust pipe Bank 1 Sensor 1- driver's side exhaust pipe Bank 1 Sensor 2-right before catalytic converter Bank 1 Sensor 3- right after catalytic converter Bank 2 Sensor 1- passenger side exhaust pipe
The bank 1, sensor 3, O2 sensor would be the O2 sensor post cat.
bank 1 is always the head with the number 1 spark plug and the number 1 sensor is always in front of the converters closest to the motor