P2177 - System Too Lean At Off Idle Right Bank
- Faulty front heated oxygen sensor
- Ignition misfiring
- Faulty fuel injectors
- Incorrect fuel pressure
- Lack of fuel
- Faulty Mass Air Flow (MAF) sensor
- Incorrect Positive Crankcase Ventilation (PCV) hose connection
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. The Engine Control Module (ECM) calculates the necessary compensation to correct the offset between the actual and the theoretical ratios.
In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the ECM judges the condition as the fuel injection system malfunction and light up the MIL (2 trip detection logic).
P2177 MAZDA System Too Lean At Off Idle Right Bank
I have 2006 Mazda 6 V6 running rough, OBD code is P2177, that needs to be replaced?...
p2177 mazda 3 2004...
I have volvo c70 2008 and it has cod p2177what could be reason ??...
450 4matic 2006 Mercedes-Benz it is showing P2177 Code, What is it?...
Any information is appreciated. Thanks