1 is below the exaust manifold and 2 is in the exaust pipe
There are 2 oxygen sensors on a 2001 SS Monte Carlo.
towards the middle of thecar installed into the exhaust pipe
heated exhaust gas oxygen sensors ( HEGO sensors ) or just oxygen sensors on a V6 engine , Bank #1 is the passenger side , Bank # 2 is the drivers side # 1 sensors are close to the engine , before the exhaust gas passes through the catalytic converters ( # 1 sensors are used for adjusting air / fuel ratio ) # 2 sensors are in the exhaust after passing through the catalytic converters ( downstream ) they are called catalyst monitors and monitor the efficiency of the catalytic converters
where is bank one sensor 1 located on 2001 maxima Bank 1 sensor 1 is located at the upper front left hand side of the motor. My 01 20th anniversary edition has 4 sensors. Just recently replaced all 4.
On my 1998 Ford Expedition XLT , There are 4 Oxygen sensors. 1 each in front of the Cats. and 1 each behing the cat. for a total of 4 Oxygen Sensors.
they have 4 oxigen sensors,, 2 by each bank(before & after catalyts)
Oxygen Sensors are usually in the exaust pipes!
The Sequoia has four oxygen sensors, two on each side. The ones in front of catalytic are pos 1 and after are pos 2. Bank 2 is on passenger side, Bank 1 is on the driver's side.
There are four oxygen sensors one on each exhaust manifold or bank of cylinders and one after each cat for both banks of cylinders
There are typically 4. * Driver Side Cylinder Bank (front) * Passenger Side Cylinder Bank (rear) * Before 3rd Catalytic Converter * After 3rd Catalytic converter
Oxygen sensors are located in the exhaust system. 4.3L example, one after each bank of cylinders, one before cat and one after cat converter.
Those are the oxygen sensors in the exhaust above the catalytic converters.