P1277 - Cylinder #7 High To Low Side Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

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

Possible symptoms

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

P1277 Description

A fault is detected by the fuel injector interface module in the secondary (rearward) fuel injector circuit
OBDII Code P1277 - Cylinder #7 High To Low Side Open - AutoCodes.com

P1277 Information for specific makes

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P1277 Comments

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