Home / OBD-II Codes / P0277
OBD-II Code

P0277 — Cylinder 6 Injector Circuit High

High signal detected in injector circuit for cylinder 6

System Engine
Severity High
Safe to drive? Not recommended
Advanced scanner Yes

What does code P0277 mean?

High signal detected in injector circuit for cylinder 6

Common symptoms

  • Rich mixture
  • black exhaust smoke

Possible causes

  • Signal shorted to voltage
  • stuck injector

Initial recommendation

Inspect connector and injector resistance.

Safety notice

This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.

Analyze this code with MecaOBD

Use the app to combine code P0277 with your vehicle's actual symptoms for more complete diagnostic guidance.

Go to the app View more codes