View source for 17547/P1139/004409

== 17547/P1139/004409 - Fuel Trim: Bank 2 (Add): System too Rich ==

==== Possible Symptoms ====

* Malfunction Indicator Light (MIL) active

==== Possible Causes ====

* Mass Air Flow (MAF) Sensor faulty
* Fuel Pressure Regulator faulty
* Fuel Injector(s) faulty
* Oxygen Sensor Control faulty
** Oxygen Sensor(s) faulty
* Evaporative Emission (EVAP) System faulty

==== Possible Solutions ====

* Check Mass Air Flow (MAF) Sensor
* Check Fuel Pressure Regulator
* Check Fuel Injector(s)
* Check Oxygen Sensor Control
** Check Oxygen Sensor(s)
* Check Evaporative Emission (EVAP) System

==== Special Notes ====

* [[Fuel Trim Info|Fuel Trim Information]]

[[Category:Fault Codes]]