Engine-CodesGMC – P1368 GMC

P1368 GMC Code - Ignition Control Cylinder 8 Not Toggling After Enable

Quick Answer

The P1368 GMC code indicates a problem with the Ignition Control Cylinder 8 not toggling after enable. Common causes include Faulty ignition control module, Malfunctioning ignition coil for cylinder 8, Wiring or connection issues in the ignition system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1368 GMC indicates Ignition Control Cylinder 8 Not Toggling After Enable.
Common causes
Common causes include Faulty ignition control module, Malfunctioning ignition coil for cylinder 8, Wiring or connection issues in the ignition system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1368 GMC Description

The P1368 GMC code indicates a problem with the Ignition Control Cylinder 8 not toggling after enable. This means that there is an issue with the ignition system specifically related to cylinder 8 in the engine. The ignition control module is responsible for sending signals to the ignition coil to generate spark for combustion in the cylinder. When cylinder 8 is not toggling after enable, it means that the ignition system is not functioning properly, leading to potential misfires, rough idle, and decreased engine performance.

OBDII Code P1368 GMC - Ignition Control Cylinder 8 Not Toggling After Enable
P1368 GMC Code - Ignition Control Cylinder 8 Not Toggling After Enable

Common Causes of P1368 GMC

  1. Faulty ignition control module
  2. Malfunctioning ignition coil for cylinder 8
  3. Wiring or connection issues in the ignition system
  4. Vacuum leaks affecting cylinder 8
  5. Spark plug or spark plug wire issues for cylinder 8

Symptoms of P1368 GMC

  1. Engine misfires or hesitation during acceleration
  2. Rough idle or stalling
  3. Decreased fuel efficiency
  4. Illuminated check engine light
  5. Engine vibration or shaking

How to Fix P1368 GMC

  1. Diagnose the specific cause of the issue by using a scan tool to monitor the ignition control module's signals for cylinder 8.
  2. Inspect the ignition coil for cylinder 8 and test its functionality using a multimeter.
  3. Check the wiring and connections related to the ignition system for any damage or corrosion.
  4. Inspect for vacuum leaks that may be affecting cylinder 8's performance.
  5. Replace any faulty components such as the ignition control module, ignition coil, spark plugs, or spark plug wires for cylinder 8.

Cost to Fix P1368 GMC

The typical repair costs for addressing the P1368 GMC code can vary depending on the specific cause of the issue and the cost of parts and labor. In general, the cost of parts such as an ignition control module, ignition coil, spark plugs, and wires can range from $100 to $300 or more. Additionally, labor costs can vary between $80 and $150 per hour, with the total repair cost likely falling between $200 and $600 or more. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the vehicle's make and model, as well as the extent of the issue.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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