Powertrain
generic / SAE
P0175
System Too Rich (Bank 2)
Same condition as P0172 but on bank 2. When paired with P0172, suspect shared causes (fuel pressure, blocked air filter); when alone, suspect a bank-specific injector or oxygen sensor.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / 75
Possible causes
- Fuel pressure regulator stuck closed high
- Leaking fuel injector on bank 2 medium
Symptoms
- Check engine light on
- Increased fuel consumption
- Black smoke from exhaust on acceleration
- Smell of unburned fuel, fouled spark plugs
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 50–600 €
- Estimated time: 0.5–4 h
- Component: fuel pressure regulator
- Component: fuel injector
- Component: oxygen sensor upstream
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012