Mike's Workshop Manuals
: Service manuals for every vehicle
Home
>>
Mazda
>>
2003
>>
6 s, Standard
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls [Self-Diagnostics 3.0L]
>>
Diagnostic Tests
>>
DTC P0402: EGR Flow - Excessive Detected
>>
Possible Causes
Possible Causes
Possible causes are:
EGR valve gasket has been damaged.
EGR valve gasket is not installed.
PCM malfunction