P2177 MAZDA - System Too Lean At Off Idle Right Bank
- Intake air leaks
- 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
Then engine is "too Lean" when the O2 sensors detect more air than fuel during combustion. There are two likely issues for a lean system problems. One of the problems could be unmetered air is entering the engine, in other words there is an air intake leak after the Mass Air Flow (MAF) sensor. The other problem could be clogged fuel injectors. Fuel additives sometimes will fix clogged fuel injectors.
- Engine Light ON (or Service Engine Soon Warning Light)
P2177 MAZDA Description
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).
Need more help?
Do you need more help with the P2177 Mazda code? Ask a question to our users or find an automotive repair shop near you to help fix the OBDII code
P2177 MAZDA CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P2177 Mazda code? Have you replaced any parts?
Any information is appreciated. Thanks