“DETROIT DIESEL DIAGNOSTIC LINK DDDL 8.20 SP1 2025” has been added to your cart. View cart
This Diagnostic Trouble Code (DTC) monitors and evaluates malfunctions in the (EGR) Exhaust Gas Recirculation Diff Pressure. A faulty (EGR) Exhaust Gas Recirculation differential Pressure can lead to uneven running and response problems.
Conditions for diagnostic trouble code (DTC):
1) The voltage at pin A14.EA:21 is above normal value
Diagnostic operating conditions
1) Ignition key in ON position
Observable symptoms
1) Poor accelerator pedal (AP) response
2) Regeneration not possible
Probable cause
1) Connector
2) Wiring harness
3) EGR differential pressure sensor
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