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P0657

Overview

Code

P0657

Code Type

P

Code Class

P0

System

Engine

Severity Level

High

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0657 indicates a malfunction in the fuel injector control circuit

Symptoms

Poor fuel economy Engine misfire

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Fuel injector control circuit

Possible Causes

Faulty injector control circuit Faulty fuel injectors

Diagnostic Steps

1 Inspect fuel injector control wiring 2 Test injector performance

Drive Safety Notes

Poor fuel injector control can result in engine misfire

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