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2016 FORD F-150
5.0L V8 Coyote•RWD•AUTOMATIC•gas
14 active safety recalls on this vehicle — view recalls
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Repairs420Labor1001Torque8720Fluid18DTC3192Battery2Maintenance0Recalls14
P0271high severityPowertrain

Cylinder 4 Injection Circuit High

on 2016 Ford F-150 5.0L V8 Coyote · RWD

What this code means

The PCM detects a high voltage condition in the cylinder 4 injector control circuit. This may result in improper fuel delivery to that cylinder.

Symptoms

  • Misfire on cylinder 4
  • Rough idle
  • Reduced engine power

Common causes

  • Faulty cylinder 4 injector
  • Short to voltage in injector wiring
  • Open injector circuit
  • Faulty PCM

Diagnostic steps

  1. Retrieve trouble codes
  2. Check cylinder 4 injector wiring for shorts
  3. Test injector operation
  4. Repair wiring or replace injector
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