P0175high severityPowertrain
System Too Rich Bank 2
on 2011 Lincoln MKX 3.7L V6 · AWD
What this code means
The long-term fuel trim for Bank 2 has exceeded the negative limit, indicating rich running on Bank 2.
Symptoms
- Check Engine Light
- Black smoke
- Poor fuel economy
- Rich exhaust smell
Common causes
- Leaking injector Bank 2
- High fuel pressure
- Faulty O2 sensor Bank 2
- EVAP issue
Diagnostic steps
- Check fuel trim Bank 2
- Test injectors Bank 2
- Test fuel pressure
- Check O2 sensor Bank 2
Repair notes
Same diagnostic approach as P0172 but focused on Bank 2.
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1