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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?
Possible 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.

P0278 Information for specific makes
P0278 AUDI Cylinder 6 Contribution Balance
P0278 FORD Cylinder 6 Injector Contribution/Balance Fault
P0278 MERCEDES-BENZ Cylinder 6 Contribution/Balance Fault
P0278 VOLKSWAGEN Cylinder 6 Contribution Balance
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