Medium and Heavy Trucks
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Hi Jim, My name is***** will be glad to help. What is the complete engine model from the ID tag So i can be sure to pull the correct info for you.
EXCESSIVE DPR DIFFERENTIAL PRESSURE(DTC CODE P244B
DPR clogged with soot, excessive emission of black smoke from engine, malfunction of differential sensor or clogging/damage in piping
MALFUNCTION OF EXHAUST TEMPERATURE SENSOR [HI](3RD FROM UPSTREAM) LOCATED AFTER DPF(DTC CODE P242D
Malfunction of exhaust temperature sensor (Hi) (3rd from upstream) located after DPF
Click on this link for further troubleshooting information. Service the plugged DPF system and replace the sensor if the sensor harness checks okay. Let me know