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2012 Chevrolet Silverado 2500 HD LT 6.6L MIL Lamp on
Posted to GM Driveability on 2/25/2017 2 Replies

First let me start off by saying I have no idea what I'm doing when it comes to diesels.

This thing came in with all the codes listed about one month ago.

Found the DEF pump was inoperative. Replaced the pump and injector. Did a regen.

Came back with P24A0...

2 Replies Received (View Replies)

  Related Documents & Media  2012 Chevrolet Silverado 2500 HD LT

 
Message Closed w/FIX

car Vehicle Data

2012 Chevrolet Silverado 2500 HD LT

VIN 1GC1KXC88C
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P20EENOx Catalyst Efficiency Below Threshold
P22A0NOx Sensor 2 Circuit Low Voltage
P22A1NOx Sensor 2 Circuit High Voltage
P24A0Closed Loop Diesel Particulate Filter DPF Regeneration Control At Limit - Temperature Too Low
P2BADExhaust NOx Concentration High-Unknown Reason
Message Closed w/FIX

car Vehicle Data

2012 Chevrolet Silverado 2500 HD LT

VIN 1GC1KXC88C
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P20EENOx Catalyst Efficiency Below Threshold
P22A0NOx Sensor 2 Circuit Low Voltage
P22A1NOx Sensor 2 Circuit High Voltage
P24A0Closed Loop Diesel Particulate Filter DPF Regeneration Control At Limit - Temperature Too Low
P2BADExhaust NOx Concentration High-Unknown Reason