Fault Code P2177
Code meaning, symptoms, possible causes, part number, and estimated cost.
P2177
System Too Lean Off Idle Bank 1
This code indicates that the Powertrain Control Module (PCM) has detected an excessively lean air/fuel mixture (too much air, too little fuel) in the exhaust system for Bank 1, when the engine is not at idle.
Part Details
Part Name
Oxygen Sensor
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪300 - ₪1000
Engine Location
Exhaust system
Symptoms
- Poor engine performance
- Increased fuel consumption
- Hard starting
- Check Engine Light on
Possible Causes
- 1Vacuum leaks
- 2Clogged or faulty fuel injectors
- 3Defective Oxygen (O2) sensor
- 4Faulty Mass Airflow (MAF) sensor
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