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P0278

P0278 - Cylinder 6 Contribution/Balance Fault

Possible causes
- Dirty Fuel Injector 6
- Faulty Fuel Injector 6
- Plugged Fuel Injector 6
- Fuel injector 6 harness is open or shorted
- Fuel injector 6 circuit poor electrical connection
What does this mean? What does this mean?
Tech notes
Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.
What does this mean? What does this mean?
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine Misfire
- Engine Run Rough
- Low MPG
P0278 Description

Code P0278 is triggered when the Engine Control Module (ECM) detects that the acceleration rate of the crankshaft for Cylinder 6 was less than a calibrated amount. During normal conditions the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

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