The bank 2 refers to the side of the engine opposite the number one cylinder, on your vehicle that is the drivers side. Sensor 1 will be the first oxygen sensor you come to in the exhaust pipe coming from the motor.
Bank 1 is before the CAT and on the left side (driver side) by the manifold.
Trouble code P0173 means:Fuel trim malfunction (Bank 2)
Trouble code P0173 means: Fuel trim malfunction (Bank 2)
Trouble code P0173 means:Fuel trim malfunction (Bank 2)
in front of the cat sensor 2 is after the cat
From what i read, the bank one sensor is on the driver's side of the exhaust manifold. Bank one refers to the first cylinder.
Trouble code P0161 means: O2 Heater Circuit (Bank 2, Sensor 2)
Your in luck...that should be the oxygen sensor in the exhaust manifold at the front of the engine compartment. Bank 2 is the bank of cylinders that does NOT contain the #1 cylinder. That bank is bank 1. Sensor 1 is the oxygen sensor upstream of the catalytic converter, and sensor 2 is the one after the cat.
P0155 = O2 sensor heater circuit malfunction (Bank 2 Sensor 1). All O2 sensors are threaded into the exhaust system at various points. Bank 2 would be the bank of cylinders that does not contain the #1 cylinder. Bank 2 Sensor 1 would be the first O2 sensor leading from bank 2 of the engine.
it should be the bank facing the front of the car in the manifold. you should be able to find it right in front when open the hood
Bank 1 is the side of the engine near the firewall. Bank 2 near the radiator. Sensor 1 is before the catalyse converter sensor 2 after the catalyse converter. In your case it is the O2 sensor that behind the firewall and after the CC.
I had the same code thrown in my 97 eclipse gsx and i replaced the o2 sensor that's after the CAT and that solved the problem