Engine Error
P0271
Cylinder 4 Injector Circuit High
Severity
High
Symptoms
Misfire, rich condition, poor fuel economy
Common Causes
- Short to battery in Cylinder 4 circuit
- Faulty fuel injector
- Wiring harness damage
- Internal PCM failure
How to Fix
- 1 Trace short to power and repair
- 2 Replace fuel injector
- 3 Repair and wrap wiring harness
- 4 Test PCM
Estimated Repair Cost
USD
$100
–
$450
Injector: $200 - $450; Wiring repair: $100