Bank 2 means it is at the engine side with cylinder numbers 2, 4, 6, 8, etc. A-Premium 2x Upstream & Downstream O2 Oxygen Sensor for 2006 Chevrolet Cobalt 2.2L l4. Where is the Bank 2 Sensor 2 Located?īank 2 Sensor 2 is the second sensor on the engine’s exhaust pipe (Downstream) on Bank 2, usually behind the catalytic converter. Bank 2 means it is at the side of the engine with cylinder numbers 2, 4, 6, 8, etc. Where is the Bank 2 Sensor 1 Located?īank 2 Sensor 1 is the first sensor closest to the engine (Upstream) on Bank 2. Bank 1 means it is at the engine side with cylinder numbers 1, 3, 5, 7, etc. Where is the Bank 1 Sensor 2 Located?īank 1 Sensor 2 is the second sensor on the engine’s exhaust pipe (Downstream) on Bank 1, usually behind the catalytic converter. Bank 1 means it is at the side of the engine with cylinder numbers 1, 3, 5, 7, etc. So to answer most of the questions people have about different banks and sensors, we’re going to summarize the different O2 sensor locations here: Where is the Bank 1 Sensor 1 Located?īank 1 Sensor 1 is the first sensor closest to the engine (Upstream) on Bank 1. Thanks Save Like Not open for further replies. Is it accessible under the passengers seat Any help will be great. V8 Car Engine – What’s the difference? What is Sensor 1 & 2?Īll the information about different banks and sensor locations can be confusing for most people, but it’s actually quite logical if you just know the basics. Hello, Im looking to replace the downstream o2 sensor on my 05 Cobalt 2.2 and I cant find anything on the internet as far as the whereabouts of its location.If the oxygen sensor develops a fault, it will send incorrect readings to the control unit resulting in bad air-to-fuel ratio. Bank 2 is the side with cylinder number 2 (Cylinders 2 – 4 – 6 – 8 etc.) The O2 sensor in Cobalt monitors the level of oxygen in the exhaust gasses that exit the engine and reports the data to the control unit which continuously adjusts the air-to-fuel ratio in the engine.Bank 1 is the side with cylinder number 1 (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. It has been intermittently been having trouble with rpms dropping at stops. The side nearest the front is not the front of the engine. O2 sensor data question - 2006 chevy cobalt, 75000 miles. The front of the engine is the part where the crankshaft pulley is. The PCM receives signals from the oxygen sensors located in your vehicles engine bay and is constantly working to adjust the right amount of air and fuel.
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. Bank 2?īank 1 and bank 2 simply refer to either side of the engine. Where is the Bank 2 Sensor 2 Located? What is Bank 1 vs.
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