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YOUR RESEARCHOxygen sensor help
Reported or suspected cause
wiring issue and not the sensor
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Leading evidence: 'wiring issue and not the sensor' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'wiring issue and not the sensor' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check resistance across the x2 white wires of the sensor' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suspected cause
i would do this if i wasnt sure it was the sensor and thought it was a wiring issue to the sensor .
Check resistance across the x2 white wires of the sensor
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Suggestion
You need to unplug bank 1 post cat lambda sensor and check for a resistance across the x2 white wires of the SENSOR ..
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Suggestion
Bank one of the engine is passenger side on a RHD car, but remember the exhaust crosses over so bank one exhaust is drivers side before you change the wrong sensor!
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Suggestion
Bank one of the engine is passenger side on a RHD car, but remember the exhaust crosses over so bank one exhaust is drivers side before you change the wrong sensor!
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911uk: 1 discussions
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Hi guys and gals
So engine warning light came on today. Reading th fault codes showed bank 1 sensor 2.
Watched a couple of YouTube videos and it looks a simple Job.
Questions I have are:
1. Which side is bank 1 (drivers or passenger)
2. Is sensor two pre cat or cat?
3. What is the part number (I'll prob stick to oem Bosch unless someone tells me otherwise)
4. Best place to buy the part?
Thanks guys. Appreciate your help in advance.
Bank one of the engine is passenger side on a RHD car, but remember the exhaust crosses over so bank one exhaust is drivers side before you change the wrong sensor!
Sensor2 is post Cat as far as I know
Don't know the part number, put this item number in eBay
192130128109
I believe that's the right one.
Aghhh we meet again
It depends on what the code actually is .. you have codes for ageing , too lean , too weak heater etc etc and its not always a sensor .. it depends on what the code actually says .
Ill go for ageing , if its this then its a slow signal and normally the lambda sensor .. be aware though that the other side will also be slow but not as bad .. its not uncommon to change one sensor for an ageing fault then get exactly the same fault but on the other side a week later.
It doesnt always happen .. but sods law and it will .
Please post the code and description if you can
Ok that will probably be the sensor but it could also be a wiring fault.
You need to unplug bank 1 post cat lambda sensor and check for a resistance across the x2 white wires of the SENSOR .. i dont know off hand the correct resistance , it alters with temp on a tester but if you have an open circuit then you have proved its the sensor .. you can do this without removing the sensor so thats good.
These sensors dont always want to come out so if replacing it DIY then have a go , you may get lucky but if no access to heat ( oxy acet. ) then it might be best to get your indy to do it .
From cold i would connect a volt meter to the wires coming in (same wires but on the other plug ) then start the car and look for 12 volts .. i would do this if i wasnt sure it was the sensor and thought it was a wiring issue to the sensor .
Its a " save the planet " fault code .. it will have pretty much no bearing on how the car runs .. its there to warm up the sensor quickly and reduce harmfull emissions as soon as possible .
You could in theory clear the code and do the same roughly every 5 days if you wished ... more often if theres a total break or it wont clear at all but lambda faults normally take 5 warm up cycles to register a fault .
if you have mice in or near your garage then trust me it needs to be sorted .. you have no idea the amount of damage they can cuase ..
Ive seen all things from cars being written off to having a live mouse in a car that i was trying to catch .. no chance basically .. they are a dam site faster than i am lol .
The " smell " is also pretty bad .. i wore a respirator one time when working on a car it was that bad !
You would look around the cross brace bar .. main brace under the engine .. from there the wiring goes up and into the main loom so the bar area is the most obvious .
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