Engine-CodesChevrolet – P1358 Chevrolet

P1358 Chevrolet Code - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8

Quick Answer

The P1358 code for Chevrolet vehicles indicates that there is a problem with the Ignition Control Module (ICM) output being high or detecting pulses when the cylinder 8 is grounded. Common causes include Faulty wiring connections, Defective Ignition Control Module (ICM), Malfunctioning ignition coil. 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
P1358 Chevrolet indicates Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8.
Common causes
Common causes include Faulty wiring connections, Defective Ignition Control Module (ICM), Malfunctioning ignition coil.
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 07, 2024
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Code P1358 Chevrolet Description

The P1358 code for Chevrolet vehicles indicates that there is a problem with the Ignition Control Module (ICM) output being high or detecting pulses when the cylinder 8 is grounded. The ICM is responsible for controlling the ignition timing and firing of the spark plugs in the engine. When this code is triggered, it means that there is a malfunction in the ICM's output related to cylinder 8, which can lead to issues with engine performance and overall drivability.

OBDII Code P1358 Chevrolet - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8
P1358 Chevrolet Code - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8

Common Causes of P1358 Chevrolet

  1. Faulty wiring connections
  2. Defective Ignition Control Module (ICM)
  3. Malfunctioning ignition coil
  4. Issues with the spark plug in cylinder 8
  5. Electrical system issues

Symptoms of P1358 Chevrolet

  1. Engine misfires
  2. Rough idling
  3. Decreased fuel efficiency
  4. Stalling of the engine
  5. Lack of power or hesitation during acceleration

How to Fix P1358 Chevrolet

  1. Perform a thorough inspection of the wiring connections related to the ICM and cylinder 8.
  2. Test the Ignition Control Module (ICM) to determine if it is functioning correctly.
  3. Check the ignition coil for proper operation and replace if necessary.
  4. Inspect the spark plug in cylinder 8 for damage or wear and replace if needed.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1358 Chevrolet

The typical repair costs for addressing the P1358 code on a Chevrolet vehicle can range from $200 to $500, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate of the repair costs.

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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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