I simply bought one O2 sensor for my 2001 Blazer with 111,000 mile (4.3 together engine) after acquiring it serviced. I have no clue wherein to put it. The servicer said it was bank 1 Sensor 2, and also absolutely no one can offer me a certain answer as to where the is. Ns was hoping maybe there to be some type of diagram to show where the O2 sensor is, due to the fact that someone told me it was after the catalytic converter top top the driver"s side, but I have only uncovered one O2 sensor after the converter, and it is top top the passenger side. The organization code to be "P0141 Sensor Heater Circuit break down (Bank 1 Sensor 2)". Ns really want to gain this fixed, because Service Engine shortly lights really piss me off! Thanks

If im not mistaken witch I can be your car should have actually 3 sensors 1 on left side before cat. 1 top top the appropriate side before cat and one ~ cat there because that the 1 on the left would be b2s1, the one the right prior to cat would certainly be b1s1, and the one after cat would certainly be b1s2. Expect this helps.

ok i"m gonna take a stab at this, i"ve worked on these electric motors plenty that times, but it"s been a while. I"m supplied to analysis o2 sensor data ~ above the scan device to educate me of i m sorry is bank (1) or bank (2). V a 4.3 girlfriend should have actually (1) o2 sensor ~ above the left side and (3) on the right. I think the sensor you"re searching for is the one prior to the cat convertor. The various other (2) will be sensor (1) top top the left and also sensor (1) ~ above the right. I hope i"m making feeling to you, anyway permit me recognize and an excellent luck :D

Sensor 2 is behind the cat, strictly measures the efficiency of the converter. If you auto only has actually one behind the cat thaen that is it, sometimes they contact for bk1 or bk2 behind the cat however there is just one sensor. Otherwise the motorists side that the engine is bk1
New Jasper Engine(3000mls) auto Gets just 10-12 Mpg. What should I Look for To settle This? O2 Sensor Or miscellaneous Else? All brand-new Plugs and also Wires...

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Step 1 - one oxygen sensor is an electronic component that is draft to measure levels the oxygen in one automotive engine exhaust system.
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