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Where is the bank 1 O2 sensor on a 318 v8 dodge durango. other posts say it's on the manifold near plug number 1 on the drivers side, but i can't see it
Re: Where is the bank 1 O2 sensor on a 318 v8 dodge...
The o2 sensor is on the exaust manifold on the left side of the vehicle where the flange of the manifold meets the resonator right befor the catalayic convertor
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Did you clean the Throttle body? That is often the cause of a rough idle.
The Fuel Air o2 sensor on the manifold is often hard to reach, but the downstream o2 sensor after the catalytic converter is easier to get to.
Code P0172 indicates Bank 1 of the engine has a rich fuel mixture. P0175 indicates Bank 2 of the engine has a rich fuel mixture. Engine Bank 1 is the same side of the engine as Engine Cylinder 1. Engine Bank 2 is the opposite side of the engine. A firing order and cylinder location diagram may be needed to see which side of the engine is Bank 1 or Bank 2.
P0172 is triggered by the engine bank 1?"upstream" oxygen sensor and P0175 is triggered by the engine bank 2 "upstream" oxygen sensor. The oxygen sensor alerts your system when the condition is too rich meaning there's too much fuel int the exhaust stream or too little oxygen in the exhaust stream. The symptoms and causes will help you determine the exact issue and how to fix it.
Your bank 1 or bank 2 sensors will be referred to as "sensor 1" or "sensor 2". Sensor 1 refers to "upstream" sensors, or the ones near the engine and before the catalytic converter. Sensor 2 is "downstream" or after the converter.
The heater in a o2 sensor can't be replaced, you need to purchase a new o2 sensor. Bank 1 sensor 2 is the after cat sensor on the same side as number 1 spark plug.
bank 1 is the side of motor that has # 1 cylinder you have 4 o2 sensors 2 in exhaust right off motor and 2 after catalytic converter ,you may get a reading that could look like this example 1/1= bank 1 # 1 o2 sensor by motor or 2/1= bank 2 # 2 o2 sensor after catalytic converter, hope that wasent to confusing
The firing order for a Dodge 318cid/5.2L is 1-8-4-3-6-5-7-2 clockwise rotation.
Cylinders are numbered like this.
Pass side 2-4-6-8 front to rear.
Driver side 1-3-5-7 front to rear.
The firing order is probably forged into the intake manifold. Number one tower on the distributor cap is the one facing the number one plug or the driver-side headlight.
Distributor rotor at Number 1 plug terminal points to front intake bolt on left side of engine.
O2 sensor bank 1 sensor 1 should actually be read as: O2 sensor, bank 1, sensor 1. Meaning the first oxygen sensor (O2 sensor #1) on cylinder bank #1 (it's a Honda inline 4 -cylinder engine, so it only has one bank of cylinders; a V6 or V8 engine would have tow banks arranged in a V shape) needs to be replaced. The oxygen sensor will be threaded into the exhaust near where the manifold (or possibly threaded in at the manifold itself) with some wires coming out of it. In the photo, the O2 sensor is labelled as the air/fuel ratio sensor.
The 1999 5.3 V8 engine had 4 oxygen sensors. There are two catalytic converters on this engine, one on the driver side of the engine, and one on the passenger side of the engine. This is important to know, as the number of oxygen sensors is directly related to the number of catalytic converters on the vehicle. Driver side is referred to as Bank 1, passenger side is referred to as Bank 2. This is very important to know when looking up replacement oxygen sensors. There is one oxygen sensor in front of, or before the catalytic converter, usually referred to as a pre-catalyst O2 sensor. There is also one behind, or after the catalytic converter, usually referred to as a post-catalyst oxygen sensor. So, you have two oxygen sensors on Bank 1, and two oxygen sensors on Bank 2, for a grand total of 4 oxygen sensors.
Okay, bank 1 is the driverside, you need to know bank 1 but what sensor? theres bank 1 sensor 1 and then bank 1 sensor 2, sensor 1 is before the cat and sensor 2 is after the cat, then the last sensor on that truck would be bank2 sensor 1 this one is on the pass/side before the cat,heres a picture to help, the bank 1 sensor two goes in rear of converter, the other two are on the manifolds, the sensor you need is on the driverside manifold,hope this helps.
I assume bank 1 is the o2 sensors before the cat & bank 2 is after the cat. The various auto parts stores are giving me conflicting info as one store says bank 1 is the left cat and bank 2 is the right cat.
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