[gregbonat]

20k after replacing DPF, ecm, and reduction unit; now getting check engine light again w following codes: p2453,p20e2, p20e4

 

[sledstorm1]

What years is your car?

Sent from my SM-G955U using Tapatalk

 

[gregbonat]

2014 190k miles

 

[gregbonat]

Looks like exhaust gas sensors (2) and exhaust back pressure sensors may be at issue. Anyone know how to locate exactly where they are at?

 

[ChevyGuy]

2014 190k miles

Mods, can this be moved to Gen1 Diesel?

 

[Deeezel]

2014 190k miles

Mods, can this be moved to Gen1 Diesel?

This is Gen 1 diesel.