Cylinder 1 Fuel Injector Short to Positive
2002-2004 Audi A6 3.0L V6
Description
The ECU detected a short to positive (battery voltage) in the Cylinder 1 fuel injector circuit. This prevents proper injector control and causes a misfire or over-fueling condition on that cylinder.
Symptoms
- Check Engine Light
- Misfire on Cylinder 1
- Rough idle
- Possible rich condition
- Reduced power
Common Causes
- Damaged injector wiring shorted to power
- Faulty fuel injector Cylinder 1
- Connector damage or melted wire
- ECU injector driver failure
Diagnostic Steps
- Test injector resistance Cylinder 1
- Inspect wiring for damage or shorts to power
- Check injector connector
- Swap injector with another cylinder to isolate
- Test ECU driver output
Repair Notes
Repair the shorted wiring or replace the faulty fuel injector on Cylinder 1.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1213 on Other Vehicles
Common Questions
What does code P1213 mean on a 2002-2004 Audi A6?
P1213 stands for "Cylinder 1 Fuel Injector Short to Positive". The ECU detected a short to positive (battery voltage) in the Cylinder 1 fuel injector circuit. This prevents proper injector control and causes a misfire or over-fueling condition on that cylinder.
What are the symptoms of P1213 on a Audi A6?
Common symptoms of P1213 include: Check Engine Light, Misfire on Cylinder 1, Rough idle, Possible rich condition, Reduced power.
What causes P1213 on a 2002-2004 Audi A6?
Common causes of P1213 include: Damaged injector wiring shorted to power, Faulty fuel injector Cylinder 1, Connector damage or melted wire, ECU injector driver failure.