[Feller2]

I know this issue has been beat to death (I've read many threads on this forum about P2201) however I cant find out how to tell where the sensor is on my truck (Out of warranty). It appears that there are many sensors on the exhaust. Scanner says "OBDII: Nitrogen oxides nOx sensor, bank 1 - range/ performance problem"

Been driving the truck for a year with this CEL since dealer wants over $3k to fix it. Now its time to smog...

Does "bank 1" mean upstream?

Some websites say that the cause of the issue might just be a loose connection or lack of power going to the sensor, could that be it? If so, how would I check that?

Also truck is saying P1C55, this is a new code. Scanner says ECU: Engine control unit, Status: Cornfirmed. Are these two codes connected???

Located in Ca, have to smog by June...
Thanks...

 

[Ltngdrvr]

You could move instead...

 

[Ltngdrvr]

Here's a how to vid...

 

[Feller2]

Thanks for the video.

Does P2201 mean its the upstream NOX sensor?

 

[Jhenderson]

Thanks for the video.

Does P2201 mean its the upstream NOX sensor?

Had you bothered to look at the video that was posted for Your Benefit you’d know the answer to that question.

 

[Feller2]

Watched the video, #1 means upstream?

 

[Jhenderson]

If You didn’t hear him identify the sensor you didn’t watch the video.

 

[txrammer01]

Had you bothered to look at the video that was posted for Your Benefit you’d know the answer to that question.

We have another winner of The Dick of the day award!

Sent from my Pixel 2 XL using Tapatalk

 

[dieselbuilder]

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[Highway 4x4]

It's the one right behind the turbo. Get taken care of soon as it will take a while for everything to be ready to pass smog.

 

[Jhenderson]

We have another winner of The Dick of the day award!

Sent from my Pixel 2 XL using Tapatalk

People like you are the reason more of us have stopped answering questions . You might try reading the “Pet Peeves” thread.

 

[dieselbuilder]

That video is for the rear nox sensor you need to take out passenger side front fender liner to gain access to the front one

 

[Jhenderson]

At 1:20 in the video he refers to it as the upstream nox sensor.

 

[dieselbuilder]

sorry no I just replaced mine video is for the rear

 

[Ltngdrvr]

Sensor locations,

 

[Jhenderson]

So we’re watching a dealer mechanic with hundreds of how to videos replace the ammonia sensor and module to correct the two error codes for the number 1 nox sensor?

 

[dieselbuilder]

YES

 

[txrammer01]

People like you are the reason more of us have stopped answering questions . You might try reading the “Pet Peeves” thread.

Spent more time writing what you did than answering the question. Could have just said yes or no.... I just don't get people anymore....

Sent from my Pixel 2 XL using Tapatalk

 

[Feller2]

Watched a few videos on youtube about the P2201 & located on my truck. I was hoping it was lower on the downpipe like one of the videos but it is basically on top of the downpipe. Luckily (for once) I do have small hands so hopefully that will assist with dealing with the module which I keep reading is the hardest part.

I replaced my VGT actuator a year ago so not too worried about pulling the inner fender well.

I've read on a thread (from 2018) that the dorman sensors fail above 210 degrees, is this still the case? I tow quite often & will replace with OEM if necessary but I would like to save some money with the dorman unit if they are working for people currently who tow...

 

[Ltngdrvr]

I've never seen anything like that about the dorman sensors failing.