Engine-Codes - Generic - P0278

P0278 Code - Cylinder 6 Contribution/Balance Fault

- Code Popularity: 20,593 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0278?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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

Code Tech Notes

Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

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How to Fix the DTC P0278?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0278 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine Misfire
  • Engine Run Rough
  • Low MPG

What Does the P0278 Code Mean?

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 Code - Cylinder 6 Contribution/Balance Fault

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Code P0278 Information for Specific Makes

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