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The 1st sensor is located closest to the engine and the last is located at the rear of the exhaust system. Generally, if we are talking about O2 sensors: Sensor 1 = Before Catalytic converter Front (Upstream O2 sensor) Sensor 2 = After Catalytic Converter Rear (Downstream O2 sensor)
https://mechanicbase.com/troubleshooting/bank1-vs-bank2/
O2 sensors ( oxygen sensors ) are located after the cat converter and for bank 1 it will be after the cat converter attached to the manifold closest to the firewall
the sensors that you see in the exhaust manifolds or before the cat converter are heated oxygen sensors (HO2S) and are completely different to normal O2 sensors
P0130 is the o2 sensor circuit bank1 sensor 1. P0134 is o2 sensor circuit no activety bank1 sensor 1.In other words the o2 sensor on the drivers side before the catalytic converter is bad and needs to be replaced.You will need to reset the computer after its replaced.
P0132 is O2 sensor High circuit sensor voltage sensor 1 bank1, What this mean is either you 02 sensor on bank1 (or where cylinder 1 is located) is disconnected internally or extenally you will need to inspect the harness for any disconnection if connection is good then you will need a new 02 sensor
Some of your O2 sensors are before the catalytic converter and some are after, based on your description. I've seen some cars that had to have all of the O2 sensors replaced when the exhaust system was replaced.
O2 sensors need a special socket to remove, and are best done when the exhaust is hot, and, also, antiseize compound should be used on the threads with the new O2 sensors.
Be prepared to have an exhaust technician change them out for you in order to get it passed the eCheck.
hi follow the exhaust manifold and on that you will see a large bolt type thing sticking out of it with wires coming out of that..thats the o2 sensor bank1 which is the first one on the line the other one after the cat is 02 sensor bank2...hope this helps
the O2 sensor for bank one sensor one is located between the catalytic converter and the engine in the exhaust head pipe. see photo of your engine cylinder layout, the sensor u want to replace is the one at the cylinder #1 bank on right.
bank on right.
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