AutoCodes – Mitsubishi – P1320 Mitsubishi

P1320 Mitsubishi Code - Ignition Timing Retard Insufficient

Quick Answer

The P1320 diagnostic trouble code (DTC) in Mitsubishi vehicles indicates that the ignition timing retard is insufficient. Common causes include Faulty Thermostat, Faulty Engine Coolant Temperature (ECT) sensor signal, Faulty 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: P1320 Mitsubishi indicates Ignition Timing Retard Insufficient.
Common causes: Common causes include Faulty Thermostat, Faulty Engine Coolant Temperature (ECT) sensor signal, Faulty 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.

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Code Popularity 15,589

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 02, 2025

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1320 Mitsubishi Description

The P1320 diagnostic trouble code (DTC) in Mitsubishi vehicles indicates that the ignition timing retard is insufficient. In simpler terms, this means that the engine's ignition timing is not being adjusted or retarded properly, which can lead to various performance issues. Ignition timing is crucial for the combustion process in the engine, as it determines when the spark plug ignites the air-fuel mixture in the cylinders. If the timing is not correct, it can result in poor engine performance, reduced fuel efficiency, and potential damage to the engine over time.

OBDII Code P1320 Mitsubishi - Ignition Timing Retard Insufficient - AutoCodes.com — P1320 Mitsubishi Code - Ignition Timing Retard Insufficient

What does this mean?

What are the Possible Causes of the DTC P1320 Mitsubishi?

Faulty Thermostat
Faulty Engine Coolant Temperature (ECT) sensor signal
Faulty Engine Control Module (ECM)

How to Fix the DTC P1320 Mitsubishi?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1320 Mitsubishi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1320 Mitsubishi code?

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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.

Frequently Asked Questions about P1320 Mitsubishi Code

1. What are the common symptoms of OBDII code P1320 in a Mitsubishi related to Ignition Timing Retard Insufficient?

- Common symptoms include engine misfires, loss of power, rough idle, and potentially increased fuel consumption.

2. What are the possible causes of OBDII code P1320 in a Mitsubishi related to Ignition Timing Retard Insufficient?

- Causes may include a faulty ignition coil, spark plugs, ignition timing control valve, or issues with the engine control module (ECM).

3. How can I diagnose the issue related to OBDII code P1320 in a Mitsubishi?

- Diagnose by checking the ignition system components, inspecting spark plugs, testing the ignition coil, and scanning the ECM for related error codes.

4. Is it safe to continue driving with OBDII code P1320 in a Mitsubishi triggered?

- It is not recommended to continue driving with this code active, as it can lead to further engine damage and potentially unsafe driving conditions.

5. How can I repair OBDII code P1320 related to Ignition Timing Retard Insufficient in a Mitsubishi?

- Repair options may include replacing faulty ignition components, adjusting ignition timing, resetting the ECM, or seeking professional diagnostic and repair services.

6. Can a DIY enthusiast fix OBDII code P1320 in a Mitsubishi at home?

- Depending on the root cause, some DIY enthusiasts with automotive experience may be able to address this issue at home by following repair guides or manuals.

7. Are there any preventative measures to avoid triggering OBDII code P1320 in a Mitsubishi?

- Regular maintenance of the ignition system, replacing spark plugs as recommended, and addressing any engine performance issues promptly can help prevent this code from appearing.

8. How does OBDII code P1320 affect the overall performance of a Mitsubishi vehicle?

- This code can significantly impact engine performance, causing issues such as misfires, reduced power output, and decreased fuel efficiency.

9. Can weather conditions or driving habits contribute to triggering OBDII code P1320 in a Mitsubishi?

- Extreme weather conditions, prolonged idling, frequent short trips, or aggressive driving habits can potentially contribute to ignition system issues triggering this code.

10. How much should I expect to pay for repairing OBDII code P1320 in a Mitsubishi at a professional auto repair shop?

- Repair costs can vary depending on the extent of the issue, parts needed, and labor rates, but expect to pay a few hundred dollars for diagnostics and repairs related to this code.