

On Bank 1 means it is at the engine side with cylinders 1, 3, 5, 7, etc.īank 2 Sensor 1 is the first sensor closest to the engine. On Bank 1 means it is at the engine side with cylinders 1, 3, 5, 7, etc.īank 1 Sensor 2 is the second sensor on the engine’s exhaust pipe, usually behind the catalytic converter.

Bank & Sensor Conclusionīank 1 Sensor 1 is the first sensor closest to the engine. In this case, sensor 1 is nearest to the engine, and the last sensor in the exhaust system’s rear. Some diesel engines have many exhaust temperature sensors, and they can use sensors 1 – 2 – 3 – 4, etc. Sensor 2 = After Catalytic Converter Rear (Downstream O2 sensor).Sensor 1 = Before Catalytic converter Front (Upstream O2 sensor).Generally, if we are talking about O2 sensors: The 1st sensor is located closest to the engine, and the last is located towards the rear of the exhaust system.

The sensor number tells us where on the exhaust system, the O2 sensor or the Exhaust temperature sensor is installed. RELATED: V6 vs V8 Car Engine – What’s the difference? What is Sensor 1 & 2? Bank 2 is the side with the number 2 cylinder (Cylinders 2 – 4 – 6 – 8 etc.).Bank 1 is the side with the number 1 cylinder (Cylinders 1 – 3 – 5 – 7 etc.).We drive on different sides globally, so it’s just confusing and misleading to guess which side bank 1 or bank 2 is on. You can’t simplify it and say that bank 1 is on the driver’s side or vice versa because different engines can have cylinder 1 on different sides. The side nearest the front is not the front of the engine. The front of the engine is the part where the crankshaft pulley is. You can also try to find any stamps on the cylinder block or head for any cylinder numbers. The easiest way to discover the right cylinder bank is to check your car’s repair manual. Most commonly Bank 1 is towards the front of the car if it has a transverse engine. Is bank 1 on the exhaust or intake side? What is Bank 1 vs Bank 2?īank 1 and bank 2 simply refer to either side of the engine.
