P1214 – Fuel Injector Group A Control Fault
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Symptoms
- Rough idle
- Multiple misfires
- Loss of power
- Poor fuel economy
- Check engine light
Causes
- Open injector circuit
- Shorted injector
- Harness damage
- ECU driver fault
- Poor ground
Diagnosis
- Check injector group wiring
- Measure injector resistance
- Check driver signals
- Inspect grounds
- Scan misfire data
Repair
- Repair wiring
- Replace faulty injectors
- Repair ECU driver
- Clean connectors
- Secure grounds