Difference between revisions of "16556/P0172/000370"

From Ross-Tech Wiki
 
Line 25: Line 25:
 
==== Special Notes ====
 
==== Special Notes ====
 
[[Fuel Trim Info]]
 
[[Fuel Trim Info]]
 +
 +
* For the Tiguan with the 2.0T DGUE engine that has one or more of the following fault codes, please see TSB 054615 for possible ECM update and hardware update.
 +
** P0172, P0300, P0301, P0302,P0303, P0304, P0441, P0456, P060C, P2440 and/or P2450
 +
*** https://static.nhtsa.gov/odi/tsbs/2019/MC-10162819-0001.pdf  nhtsa.gov
 +
 
[[Category:Fault Codes]]
 
[[Category:Fault Codes]]

Latest revision as of 14:57, 5 May 2021

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

  • For the Tiguan with the 2.0T DGUE engine that has one or more of the following fault codes, please see TSB 054615 for possible ECM update and hardware update.