OBD-II code · Powertrain (generic)
P026D Fuel Injection Quantity A Higher Than Expected
Fuel injection quantity A is higher than commanded — often a leaking injector or stuck-open nozzle.
Is it safe to drive with P026D?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyInjector leaking or stuck open
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–8 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Fuel Injectors
Related codes
- P2DD6Fuel Injection Quantity B Higher Than Expected
- P2DDDFuel Injection Quantity C Higher Than Expected
- P2DDFFuel Injection Quantity D Higher Than Expected
- P026ACharge Air Cooler Efficiency Below Threshold
- P026BInjection Timing Performance
- P026CFuel Injection Quantity A Lower Than Expected
- P026ECharge Air Cooler Coolant Pump A Performance
- P026FCoolant Thermostat Performance
- P0270Cylinder 4 Injector Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.