P1278 FORD - Cylinder #8 High To Low Side Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

P1278 FORD Possible Causes

  • Faulty Fuel Injector
  • Faulty Fuel Injector Interface Module
  • Fuel Injector harness is open or shorted
  • Fuel Injector circuit poor electrical connection

First diagnose P1278 FORD code

    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 terminals.

P1278 FORD Tech Notes

Check valve cover wire harness connections first, including under the valve cover.

Cost of diagnosing the P1278 FORD code

    Labor: 1.0

    The cost of diagnosing the P1278 FORD code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P1278 FORD Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1278 FORD Meaning

A fault is detected by the fuel injector interface module in the secondary (rearward) fuel injector circuit
OBDII Code P1278 FORD - Cylinder #8 High To Low Side Open - Engine-Codes.com

P1278 FORD More Information

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