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AutoCodes - Generic - P1668

P1668 Code - Fuel Injector 3 Mechanical Fault

- Code Popularity: 27,208 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1668?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Fuel Injector
  • Fuel Injector harness is open or shorted
  • Fuel Injector circuit poor electrical connection
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How to Fix the DTC P1668?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

Before replacing the fuel injector, check the wire harness and/or replace harness if necessary.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1668 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P1668 Description

The Fuel Injector is an electronically controlled mechanical device that is supplied with pressurized fuel by the fuel pump and when energized atomizes the fuel into a fine mist so that it can burn easily in the engine.
The Engine Control Module (ECM) monitors the Fuel Injector. The ECM sets the Diagnostic Trouble Code (DTC) when the Fuel Injector is not to factory specifications.

OBDII Code P1668 - Fuel Injector 3 Mechanical Fault - AutoCodes.com
P1668 Code - Fuel Injector 3 Mechanical Fault

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Information for Specific Makes

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Code P1668 comments

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