OBD-II code · Powertrain (generic, extended)
P2180 System Too Rich Off Idle Bank 2
Bank 2 fuel trim shows a rich shift during off-idle conditions. The ECU subtracts fuel to maintain proper combustion. Common causes are stuck injectors or excess fuel pressure.
Is it safe to drive with P2180?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyLeaking injector on bank 2
- PossibleExcessive fuel pressure
Symptoms
- Check engine light on
- Increased fuel consumption
- Black smoke from exhaust on acceleration
- Smell of unburned fuel, fouled spark plugs
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Fuel Injector, Fuel Pressure Regulator, Evap Purge Valve
Related codes
- P2178System Too Rich Off Idle Bank 1
- P217DFuel Injector Group H Supply Voltage Circuit/Open
- P217EFuel Injector Group H Supply Voltage Circuit Low
- P217FFuel Injector Group H Supply Voltage Circuit High
- P2181Cooling System Performance
- P2182Engine Coolant Temperature Sensor 2 Circuit
- P2183Engine Coolant Temperature Sensor 2 Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.