P0277
Powertrain Codes
P0277 - MAZDA - Fuel Injector Driver Circuit Fault Open Circuit Condition Injector 6
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine Misfire
- Engine Run Rough
- Low MPG
Possible Causes
- Fuel injector 6 harness is open or shorted
- Fuel injector 6 Circuit poor electrical connection
- Plugged Fuel Injector 6
- Dirty Fuel Injector 6
- Faulty Fuel Injector 6
Tech Notes
Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.
Description
Code P0277 is triggered when the Engine Control Module (ECM) detects a high voltage in the Fuel Injector 6 Circuit. During normal conditions the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.