Bank location

Which side is bank 1 and which side is bank 2?

My car has 158888 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hello. Bank 1 is the side containing cylinder No. 1 on your engine, as you face the front of the engine, that is looking dead on at the crankshaft pulley/harmonic balancer. Cylinder No. 1 is on the left side of the engine. Bank 2 of course is the other side, that is the right side. If you have been sent "there", to Bank 1, as part of a diagnostic, or as a result of a trouble code, let us know if YourMechanic can assist you with the issue.

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What side are Bank 1 and Bank 2 on Ford Mustangs? Bank 1 will be the passenger (RH) side. Bank 2 will be the driver (LH) side.
The Ford 3.8 liter V-6 firing order is ( 1 – 4 – 2 – 5 – 3 – 6 ) clockwise.
Base-model Mustangs carry a 190-hp, 3.8-liter V-6 engine, while the GT gets a 4.6-liter single-overhead-cam V-8 rated at 260 hp. Either engine can team with a five-speed-manual transmission or an optional four-speed automatic.
Bank 1 and bank 2 simply refer to either side of the engine. Check your owner`s manual or a service manual for a positive location of bank 1 and bank 2. Most commonly, bank 1 houses the front most cylinder on the engine cylinder 1, and bank 2 is the opposite side of the engine.
V6 engines with an angle of 90 degrees between the cylinder banks have used a firing orders of R1-L2-R2-L3-L1-R3 or R1-L3-R3-L2-R2-L1. Several V6 engines with an angle of 60 degrees have used a firing order of R1-L1-R2-L2-R3-L3. Flat-six engines have used firing orders of R1-L2-R3-L1-R2-L3 or R1-L3-R2-L1-R3-L2.
Most Ford V8: Counter-clockwise 1-5-4-2-6-3-7-8. Ford (5.0L HO, 351W, 351M, 351C, 400): Counter-clockwise 1-3-7-2-6-5-4-8. Most Ford modular (4.6/5.4L): 1-3-7-2-6-5-4-8.
Hi There, This oxygen sensor is located on the passenger side of the vehicle in front of the catalytic converter.
What is code P0174? The Diagnostic trouble code (DTC) P0174 indicates `System Too Lean (Bank 2).` The P0174 engine code indicates that the air-fuel ratio in your vehicle is too lean. Before the gas in your car can combust and power your vehicle, it must first combine with oxygen.
The Mustang coupe ($17,720) and Mustang convertible ($23,455) come standard with a 3.8-liter V6, an overhead-valve engine rated 190 horsepower at 5250 rpm and 220 foot-pounds of torque at 2750 rpm. A five-speed manual is standard, a four-speed automatic ($815) is optional.
A V6 is a 6-cylinder engine with two banks of three cylinders arranged in a “V” formation relative to each other. The cylinders house pistons connected to a crankshaft. In the V formation, one crankshaft can power both banks of cylinders from the base of the V.
Bank 1 is the rear bank on your engine. where the number 1 cylinder is located, is bank 1.
on an inline engine: the number one cylinder is located at the front of the engine, closest to the timing cover. on a v type engine: one cylinder head is slightly forward of the other, toward the front of the engine. cylinder number one is the forward most cylinder in that bank.
Simply put, a V6 is a 6-cylinder engine. Whereas, a V8 means an 8-cylinder engine. But, you may wonder what the `V` means in V6 and V8. The `V` represents the way cylinders are arranged in your engine.
The engine number is stamped on the engine block near the gearbox on the front left-hand side facing the radiator.
Locate the ID tag under coil attaching bolts for six-cylinder and some eight-cylinder engines. The tag is a series of numbers and letters etched in and used to decipher the year, make, and model of you engine. It is found underneath the bolts on the left or right side of the engine, near the front of the car.
Four cylinders: 1 – 3 – 4 – 2

Five cylinders: 1 – 3 – 5 – 4 – 2. Six cylinders: 1 – 5 – 3 – 6 – 2 – 4. Eight-cylinder inline engine: 1 – 8 – 7 – 3 – 6 – 5 – 4 – 2. Eight cylinder V-8 engine: 1 – 3 – 2 – 5 – 8 – 6 – 7 – 4.

The O2 sensors are mounted in the exhaust system of the car, with Sensor 1 located before the catalytic convertor. Sensor 2 is mounted in the exhaust stream and is located after the catalytic convertor.
Sensor 1 is the upstream oxygen sensor. It is the sensor that measures the oxygen content in the exhaust, providing an input to the computer, which determines how to adjust the air/fuel ratio. Sensor 1 is the sensor closest to the engine.
It gathers voltage readings based on the oxygen level in the exhaust and relays it to the Engine Control Module (ECM), which uses it to regulate your engine`s fuel injection levels. Whenever the P0136 code appears, the ECM has determined that Sensor 2 located behind your car`s catalytic converter is malfunctioning.
Bank 2 refers to the side of the motor opposite of cylinder number one, and Sensor 3 refers to the third sensor downstream from the engine. This sensor usually monitors the performance of the catalytic converter.
The P0056 diagnostic trouble code`s (DTC) title is “HO2S Heater Control Circuit Bank 2 Sensor 2.” If this diagnostic trouble code sets in your car, there is a problem with the bank 2 sensor 2 oxygen sensor heater control circuit.
The P0430 fault code is a common one, and it stands for catalyst system efficiency below the threshold (Bank 2). This means that the catalytic converter on bank 2 exhaust manifold isn`t functioning efficiently and is sending excess pollution into the environment.
The error “system too lean bank 1 and 2” is an issue with the air/fuel ratio in your engine being too lean. If you`re using an OBD scanner, this shows up as code P0171 for bank 1, and code P0174 for bank 2.
Here`s Why 3.9-Liter V-6`s Replaced the 3.8`s in Later 4th-Gen Mustangs. Mustangers know their motors.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Hello. I have to replace both the bank 1 and bank 2 cat. Does bank 1 and 2 refer to "right" and "left"? Thanks
ANSWER : Yes, bank 1 and bank 2 is the same as left and right. Bank 1 is the right side of the engine and bank 2 is the left. Before purchasing and replacing the catalyst, you should have a complete diagnosis of the codes you are receiving from the engine computer. You may need to do additional repairs before the catalyst is replaced or damage to the new catalyst may happen. I recommend having a mechanic verify the computer systems are clear of any problems before you can install the new catalyst. If you would like to have the car checked, a qualified professional from YourMechanic can verify the issue and move forward with any needed repairs.

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Truck bogs out under load
ANSWER : First, the EGR tube rusted away will cause excessive air to get into the exhaust and cause the O2 sensors to read erratic. The main reason you most likely have a mass air sensor that is not reading correctly for the altitude you are at. You should check the mass air sensor with the key on and engine off to see if the barometric sensor is reading the correct altitude. If it is reading above 10,000 ft, then replace the mass air sensor. Disconnect the battery for 10 minutes to clear fuel control then road test for problem. If you need a diagnosis, a certified technician from YourMechanic can come to your car’s location to inspect the loss of power and advise you on repair.

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I need to find out the location of the Exhaust Camshaft Position Sensor Bank 1 on a 2008 Infiniti EX35.
ANSWER : Hello, thank you for writing in. The bank 1 camshaft position sensor is going to be located on the front of the engine. Most specifically it is going to be located right below the valve cover on the bank (or side of the engine) that includes cylinder 1. On your specific vehicle, this should be the side of the engine is on the driver’s side. Your owner;s manual will have more information on cylinders and firing orders. With that being said, the sensor will cause running issues and should be replaced first before turning your attention to any other potential problems. For more diagnostic help, contact our service department to schedule an appointment.

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Location of bank 1, sensor 2 on 2012 Scion xb
ANSWER : Yes. Sensor 2 is after the converter. Sensor 1 is the one that is closest to the engine in the manifold. If you need help replacing an oxygen sensor, a qualified technician from YourMechanic can come to your car’s location to perform this task for you.

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What is the location of the spark plugs on a 2015 Dodge Journey sxt 6cylinder, and would that be the cause of a misfire bank 12&3
ANSWER : Hi there. You might want to watch this video on removing the spark plugs on a Dodge V-6 3.6 liter engine. Although this car is different, your Journey has the same exact engine configuration. The random misfire of 1, 2, and 3 is likely caused by a failed injection rail or individual spark plug wires or the plugs themselves.

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Bank 1 and Bank 2 running lean
ANSWER : If lean faults occur after the manifold was removed and reinstalled, this indicates a vacuum leak which also means that unmetered air is coming into the intake. Either a vacuum line or induction pipe is loose, or the manifold is not seated correctly. The repair needs to be double checked. If no obvious items are found, a smoke check of the induction may need to be performed to locate the source of the unmetered air leak. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the equipment and training to diagnose the error codes and help you move forward with the appropriate repairs.

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Car hesitates, bank one and bank two too lean. 2001 Hyundai XG300.
ANSWER : Hello there. This is a common issue with the 2001 Hyundai XG300. There are a few possible causes for the engine to hesitate. The most common are the spark plugs, vacuum leak, oxygen sensor, fuel pump, exhaust leak, fuel filter, or air filter. When bank 1 and 2 are lean, it means that the engine is either not getting enough fuel or air. All of the listed faults could contribute to the symptoms you are experiencing, but diagnosis is needed for an accurate answer. If you would like help with this, a qualified technician from YourMechanic can come to your car’s location to diagnose the hesitation problem and let you know what needs repair.

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where is the bank 2 sensor 1 located on a 2010 ford f-150
ANSWER : When it comes to a Ford, cylinder #1 is on the passenger side of the vehicle, so that makes the passenger side Bank 1. Bank 2 is the driver’s side of the engine. Sensor 1 is the sensor in front (towards the engine) of the catalytic converter. Sensor 2 is the one just past (towards the rear) of the catalytic converter. Before replacing the oxygen sensor, make sure there are no broken or loose vacuum lines and the air filter housing is properly sealed. An air intake leak can sometimes cause a lean fuel mixture which can fool the engine control unit into thinking there is an oxygen sensor fault. If you have any doubts, have a certified technician look into the fault codes before replacing any components.

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