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OBD-II Diagnostic Trouble Code
P0402

Exhaust Gas Recirculation Flow Excessive Detected

P
Powertrain
engine / trans
0
Generic
SAE standard
4
Auxiliary emission controls
02
Exhaust Gas Recirculation Flow Excessive Detected
Severity · general guide
Moderate
Fix soon — usually won't strand you
Code type
Generic
System
Powertrain