Difference between revisions of "16556/P0172/000370"
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Revision as of 03:53, 18 April 2011
16556/P0172 - System Too Rich, Bank 1
Possible Symptoms
- Irregular behaviour
Possible Causes
- Fuel system
- Excessive fuel pressure
- Leaking or contaminated fuel injectors
- Leaking fuel pressure regulator
- Low fuel pressure or running out of fuel
- Vapor recovery system
- Air leaks after the MAF
- Vacuum leaks
- Improper seated engine oil dipstick
- Stuck EGR valve
- Oil overfill
- Cam timing
- Cylinder compression
- Exhaust leaks before or near HO2Ss.