Caused by short distance driving
P2003 DPF efficiency below threshold
An air leak will result in sensor readings fluctuations that will trigger the codes.
Fuel with high percentage sulphur will contribute to these fault codes.
P0470 Exhaust pressure sensor malfunction
Blockage in pipe from sensor to the exhaust
P0471 Exhaust pressure sensor range/performance
EGR valve / air leaks
P242f (if left untreated)
Faulty exhaust pressure sensor
P2031 exhaust gas temperature sensor circuit
Loose or corroded connectors or terminals
Broken wires
Faulty sensor
P2032 exhaust gas temperature sensor low
Loose or corroded connectors or terminals
Broken wires
Faulty sensor
P2033 exhaust gas temperature sensor high
Loose or corroded connectors or terminals
Broken wires
Faulty sensor
P242f DPF restriction (ash accumulation)
Excessive ash accumulation in DPF
Defective DPF pressure sensor
Clogged DPF pressure sensor pipes/hoses
Open or shorted circuit/s in the DPF sensor circuit
Inefficient DPF regeneration
Overuse of engine or fuel system additives
The active DPF regeneration system inoperative
P244a DPF differential pressure too low
Insufficient/incorrect diesel exhaust fluid
Open or shorted circuit – DPF pressure sensor
Defective pcm programming
Defective DPF sensor
Faulty DPF
P244b DPF differential pressure too high
Insufficient/incorrect diesel exhaust fluid
Open or shorted circuit – DPF pressure sensor
Defective pcm programming
Defective DPF sensor
Faulty DPF
