Powertrain
Definition only
Lights the check engine lamp
P2C26: Fuel Injector Group B Supply Sense Circuit
Standardized SAE J2012 code · P2Cxx codes
What does P2C26 mean?
The ECM detects a generic fault on the supply sense circuit of fuel injector group B. Group supply voltage cannot be measured reliably.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Common causes
- High Wiring or connector fault
- Medium Group supply fuse aged with high resistance
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2C26 on the same make and model first.
P2C26 in the community
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