P1213high severityPowertrain
Cylinder 1 Fuel Injector Short to Positive
on 2021 Audi A4 2.0L I4 TFSI · AWD
What this code means
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.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1