OBD-II code · Powertrain (generic, extended)
P2192 System Too Rich at Higher Load (Bank 1)
Bank 1 fuel trim hits the rich limit only at higher load. Often excessive fuel pressure, a stuck-closed MAF reading low, or coolant temperature signal stuck cold causing over-fuelling.
Is it safe to drive with P2192?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyFuel pressure too high
- PossibleMAF reads low under load
- PossibleCoolant temperature sensor stuck cold
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 Pressure Regulator, Mass Air Flow Sensor, Coolant Temperature Sensor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.