P20EE code

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Mlauber

New Member
Dec 1, 2019
2
0
1
Ohio
Truck Year
2016
I bought a used 2016 eco diesel yesterday and had the check engine light come on with the P20ee code this morning. How concerned should I be about this? From what I have read it can be no big deal to a major concern. Thanks.
 

carlhenry

Well-Known Member
Nov 21, 2018
1,199
211
63
Truck Year
Not Listed
NOx sensor below threshold cancel it and see it it comes back
 

Mlauber

New Member
Dec 1, 2019
2
0
1
Ohio
Truck Year
2016
Thanks for the recommendation. I ended up contacting the dealer and they are going to replace the sensor.
 

Dan Walker

New Member
Jul 5, 2016
9
0
1
Seattle,
Truck Year
2016
I had the same issue on my own 2016 eco diesel.. they changed the NOx sensor but came back. Seems the EGR Cooler has been blowing coolant into the exhaust and this is more than likely the cause for my truck.. It's been at the dealership for over three weeks now. It's under warranty but no parts. I have a case open with FCA/RAM Customer care. It's not been fun. So Check your coolant level, if it keeps going down then your egr cooler is probably gone