Engine-CodesChevrolet – P1305 Chevrolet

P1305 Chevrolet Code - Ignition Coil 2 Primary Feedback Circuit

Quick Answer

The P1305 Chevrolet diagnostic trouble code (DTC) specifically refers to the Ignition Coil 2 Primary Feedback Circuit. Common causes include Faulty ignition coil, Damaged or corroded wiring/connectors in the ignition coil circuit, Malfunctioning Engine Control Module (ECM). 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
P1305 Chevrolet indicates Ignition Coil 2 Primary Feedback Circuit.
Common causes
Common causes include Faulty ignition coil, Damaged or corroded wiring/connectors in the ignition coil circuit, Malfunctioning Engine Control Module (ECM).
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 08, 2024
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Code P1305 Chevrolet Description

The P1305 Chevrolet diagnostic trouble code (DTC) specifically refers to the Ignition Coil 2 Primary Feedback Circuit. In simpler terms, this code indicates that there is a problem with the electrical circuit that controls the ignition coil for cylinder 2. The ignition coil is a crucial component in the ignition system of a vehicle, responsible for converting the low voltage from the battery into the high voltage needed to create a spark in the spark plugs, which ignites the fuel-air mixture in the engine cylinders.

OBDII Code P1305 Chevrolet - Ignition Coil 2 Primary Feedback Circuit
P1305 Chevrolet Code - Ignition Coil 2 Primary Feedback Circuit

Common Causes of P1305 Chevrolet

  1. Faulty ignition coil
  2. Damaged or corroded wiring/connectors in the ignition coil circuit
  3. Malfunctioning Engine Control Module (ECM)
  4. Worn out or damaged spark plug
  5. Electrical system issues

Symptoms of P1305 Chevrolet

  1. Rough idling or engine misfires
  2. Decreased acceleration and overall performance
  3. Poor fuel efficiency
  4. Illumination of the check engine light
  5. Engine stalling or hesitation

How to Fix P1305 Chevrolet

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to pinpoint the exact problem in the ignition coil circuit.
  2. Inspect the ignition coil, wiring, and connectors for any visible damage or corrosion. Replace any damaged components as needed.
  3. Test the ignition coil with a multimeter to ensure it is functioning correctly. Replace the ignition coil if it is found to be faulty.
  4. Check the spark plug for wear or damage and replace it if necessary.
  5. Clear the error code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1305 Chevrolet

The cost of repairing the Ignition Coil 2 Primary Feedback Circuit can vary depending on the specific cause of the issue and the labor rates at the repair shop. On average, the parts for this repair can range from $50 to $150, while labor costs can be between $100 to $200. Overall, the total repair cost can be anywhere from $150 to $350. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on your vehicle's make and model.

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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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