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hello, the banks 2 sensor is located in the exhaust manifold near the firewall and visible from the top, you will need a special o2 sensor socket to remove it.
follow exhaust pipe from engine and the o2 sensor behind the cat converter is your sensor looks like a spark plug mounted towards the top of exhaust with a wire on it
All 3 of these Codes have to do with the O2 devices. Some are saying the heating elements are returning low signals. These elements are built inside the O2 sensors and are designed to make your vehicle get out of "rich" mode faster.
Bank2 sensor1, Bank1 sensor1, Bank1 sensor2. Check your connections and the wiring leading to these parts.
You may need to replace these O2 sensors if the wires are good.
your truck should have four o2 sensors bank 1 sensor 1 is o2 sensor on cylinder 1 side before cat and bank1 sensor2 two is 02 sensor after cat banks 2 sensor1 is on other side berfore cat and bank2 sensor2 is after cat hope that helps when they read code it should tell you bank1 sensor1 or2 good luck
Air/Fuel Sensors are mounted upstream of the catalytic converter. They are located on the exhaust manifold side of the catalytic converter (pre-converter - Sensors 1). Oxygen Sensors are mounted downstream of the catalytic converter (post-converter - Sensors 2). The catalytic converter has two chambers (left and right). Bank1 is left, drivers side. Bank2 is right, passengers side. The Bank2 Sensor1 sensor (Air/Fuel Sensor) is the one located on the 'right and ahead' of the converter. The PowerTrain Control Module (PCM) is reporting that the heater or circuit ( wiring / plug-in) of the sensor is malfunctioning.
This is a 4 cylinder right? Open the hood and look down between the engine and firewall, this is behind the engine. You will see the exhaust pipe, follow the exhaust pipe up to where it is bolted to the exhaust manifold. You will see the upstream O2 sensor screwed in there, more or less horizontally with wire connector pointed at driver side of car. Now get under the car and find the catalytic converter in the exhaust pipe, a big bulbous thing, the downstream O2 sensor will be after the converter, but before the muffler and will also have an electrical connection.
There are 4 oxy. sensors listed for your truck. they're located as follows
Left exaust before catalytic converter. bank1 sensor1-after cat conv.
bank1 sensor2. right exaust before cat.conv. bank2 sensor1-after cat.
conv. bank2 sensor2. Hope this helps.
is your vehicle equip with a v6 engine? if so it mean when standing in front the vhicle the exhaust on your right is on bank 2 & the o2 sensor should be mounted there
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