Difference between revisions of "16556/P0172/000370"

From Ross-Tech Wiki
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==== Possible Symptoms ====
 
==== Possible Symptoms ====
  
* Irregular behaviour
+
* Irregular behavior
  
 
==== Possible Causes ====
 
==== Possible Causes ====
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* Exhaust leaks before or near HO2Ss.
 
* Exhaust leaks before or near HO2Ss.
  
 +
==== Special Notes ====
 +
[[Fuel Trim Info]]
 
[[Category:Fault Codes]]
 
[[Category:Fault Codes]]

Revision as of 11:30, 11 March 2015

16556/P0172 - System Too Rich, Bank 1

Possible Symptoms

  • Irregular behavior

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.

Special Notes

Fuel Trim Info