P1274 – Fuel Injector D Short to Ground
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Symptoms
- Misfire
- Rough idle
- Loss of power
- Check engine light
- Possible no start
Causes
- Chafed wiring
- Shorted injector
- Connector damage
- Incorrect repair
- Control module driver fault
Diagnosis
- Check injector resistance
- Inspect wiring for shorts
- Inspect connector
- Check driver output
- Scan misfire data
Repair
- Repair wiring
- Replace injector
- Replace connector
- Repair control module driver
- Secure harness routing