Help please P0130-01 fault Fiat Ducato 2021 140bhp Auto 9

[Vaman]

I have this fault P0130-01 and the engine warning light as expected. I need to get an MOT urgently as we are supposed to be Europe bound on the 19th! If I monitor the O2 sensor with Multiecuscan it shows no output voltage or percentages. A mobile mechanic said it's the sensor at the very top of the exhaust just at the back of the engine, which is connected to a module directly in front of you when you open the bonnet buy the earth stud. I am not convinced as I notice there is another sensor (5 wire) just to the right of it, also on the top of the engine.
I know there are other sensors as well, so which is correct please any help appreciated.

 

[Peavy]

Edit: deleted to avoid confusion

 

[oldiesontour]

The unit by the stud is input nox sensor...there is another at the back of the exhaust mounted on top of a heat shield output nox sensor.If you Google O2 sensor and then nox sensor you will see the difference

 

[Vaman]

The module you highlighted is connected to a sensor right at the top of the engine, the layout is different. I will try for a photo to save confusion. Back soon

 

[Vaman]

The module you highlighted is connected to a sensor at the top of the engine, the layout is different. I will try for a photo to save confusion. 1st picture shows both sensors accessible direct from on top of the engine. 2nd show the module the left hand sensor is connected to which is just below the earth stud. HTH

^{_{Subscribers  do not see these advertisements}}

 

[oldiesontour]

My post above is the layout on my 2020 boxer but the goggle bit brings back nox and o2 Sensors for your van looking the same as mine

 

[Vaman]

My post above is the layout on my 2020 boxer but the goggle bit brings back nox and o2 Sensors for your van looking the same as mine

The part number of the sensor connected to the module is a Nox sensor, my question is, is the other sensor in the photo an oxygen or perhaps a temperature sensor. So many versions its hard to tell, I did find a sensor that is looks like it has a waist like the RH one and it was oxygen lambda.

 

[oldiesontour]

I can't speak for yours but if you search eBay for 02 sensor some have a picture of the plug on th sensor ...may help you identify it ?

 

[the1andonly]

The layout on a twin egr is totaly different and i dont know your layout but a few months ago a mate had one with a simular problem but he had some device fail with a lack of +5V and no output was all due to chaffing wires (a Ducato favourite) a second failed with top temp sensor shorting to ground a liberal dose of insulating tape solved both problems. If you cant find the solution let your eyes wander around the Loom.

 

[Vaman]

View attachment 1044280View attachment 1044281

The right hand sensor is the 02 sensor, with the left being the NOX sensor. The sensor was replaced and everything is back to normal now. For genuine parts you can use Coastalmotorhomes, they do an overnight service. I can supply the NOX and O2 part numbers for 2021 140bhp 9 speed Maxi XL if needed.

^{_{Subscribers  do not see these advertisements}}

 

[the1andonly]

The right hand sensor is the 02 sensor, with the left being the NOX sensor. The sensor was replaced and everything is back to normal now. For genuine parts you can use Coastalmotorhomes, they do an overnight service. I can supply the NOX and O2 part numbers for 2021 140bhp 9 speed Maxi XL if needed.

I would appreciate the part numbers, is the 2021 known to have different parts to earlier or later?
Thanks for reporting back the resolution.

 

[Vaman]

OK, double check your location matches above. This is an Ad Blue engine 2.3L 140bhp, 9 speed 2021
The Nox sensor is connected to the module right at the front of the engine, search coastalmotorhome

46341847​

The O2 sensor (Upstream) is just to the right of the Nox sensor as per photo

55281073​

The O2 sensor (Downstream) is

55281074​

All of the above are genuine Fiat parts numbers, all can be purchased cheaper as copies, but you take your chances.