P0175
System Too Rich (Bank 2)
Medium — service soonPowertrain (engine & transmission)
System
Powertrain (engine & transmission)
Type
Generic (standardized)
Subsystem
Fuel & air metering
What it means
Same rich condition as P0172 but on bank 2 of a V-engine.
Symptoms
Black smoke, high fuel consumption, rough running.
Common causes
Leaking injectors, high fuel pressure, faulty MAF or oxygen sensor.
Recommended action
Diagnose fuel pressure and sensors; P0172 + P0175 together suggest a common cause.
Related codes
P0300Random/Multiple Cylinder Misfire DetectedP0301Cylinder 1 Misfire DetectedP0302Cylinder 2 Misfire DetectedP0303Cylinder 3 Misfire DetectedP0304Cylinder 4 Misfire DetectedP0420Catalyst System Efficiency Below Threshold (Bank 1)P0430Catalyst System Efficiency Below Threshold (Bank 2)P0171System Too Lean (Bank 1)P0174System Too Lean (Bank 2)P0172System Too Rich (Bank 1)P0101Mass Air Flow (MAF) Circuit Range/PerformanceP0113Intake Air Temperature Sensor Circuit High
FAQ — P0175
What does code P0175 mean?
System Too Rich (Bank 2). Same rich condition as P0172 but on bank 2 of a V-engine.
What are the symptoms of P0175?
Black smoke, high fuel consumption, rough running.
What causes P0175?
Leaking injectors, high fuel pressure, faulty MAF or oxygen sensor.
What should I do about P0175?
Diagnose fuel pressure and sensors; P0172 + P0175 together suggest a common cause.
General reference based on the SAE J2012 standard. Exact causes for your vehicle may differ — when in doubt, consult a workshop.
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