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P1358 Ford Code - Ignition Diagnostic Monitor Signal Out of Self-Test Range

Quick Answer

The P1358 Ford code indicates that there is a problem with the Ignition Diagnostic Monitor (IDM) signal being out of the self-test range. Common causes include Faulty ignition coils, Damaged or worn spark plugs, Wiring issues or electrical connections. 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 Ford indicates Ignition Diagnostic Monitor Signal Out of Self-Test Range.
Common causes
Common causes include Faulty ignition coils, Damaged or worn spark plugs, Wiring issues or electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1358 Ford Description

The P1358 Ford code indicates that there is a problem with the Ignition Diagnostic Monitor (IDM) signal being out of the self-test range. The IDM is a crucial component of the vehicle's ignition system that monitors and controls the ignition timing. When this signal is out of range, it can lead to issues with the engine's performance, fuel efficiency, and overall drivability.

OBDII Code P1358 Ford - Ignition Diagnostic Monitor Signal Out of Self-Test Range
P1358 Ford Code - Ignition Diagnostic Monitor Signal Out of Self-Test Range

Common Causes of P1358 Ford

  1. Faulty ignition coils
  2. Damaged or worn spark plugs
  3. Wiring issues or electrical connections
  4. Malfunctioning IDM module
  5. Engine timing problems

Symptoms of P1358 Ford

  1. Check engine light illuminated on the dashboard
  2. Engine misfires or hesitation during acceleration
  3. Rough idle or stalling
  4. Poor fuel economy
  5. Difficulty starting the vehicle

How to Fix P1358 Ford

  1. Begin by performing a thorough diagnosis using a diagnostic scanner to retrieve the specific trouble codes and pinpoint the source of the issue.
  2. Inspect the ignition coils, spark plugs, and wiring for any signs of damage or wear. Replace any faulty components as needed.
  3. Test the IDM module to ensure it is functioning correctly. If found to be defective, replace it with a new one.
  4. Clear the trouble codes from the vehicle's memory and reset the system to see if the issue has been resolved.
  5. Test drive the vehicle to confirm that the problem has been fixed and that the engine is running smoothly.

Cost to Fix P1358 Ford

The typical repair costs for addressing the P1358 Ford code can range from $200 to $500, including parts and labor. However, it's essential to note that the actual cost can vary depending on the specific diagnosis time and labor rates at auto repair shops. Rates can range from $80 to $150 per hour, with higher rates in metropolitan areas or at dealerships and lower rates at independent shops. It is recommended to obtain quotes from multiple shops to ensure a competitive price for the repair.

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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 P1358 Ford Code

1. What are the common symptoms of OBDII code P1358 in a Ford vehicle?

- Common symptoms include rough idling, engine misfires, difficulty starting the engine, and a decrease in overall engine performance.

2. What are the possible causes of OBDII code P1358 in a Ford vehicle?

- The code P1358 typically indicates a fault with the Ignition Diagnostic Monitor Signal, which can be caused by issues with the ignition system, such as faulty spark plugs, ignition coils, or wiring.

3. How can I diagnose OBDII code P1358 in my Ford vehicle?

- To diagnose code P1358, you can start by checking the ignition system components for any visible damage or wear. It's also recommended to use an OBDII scanner to retrieve specific diagnostic trouble codes.

4. Can a DIY enthusiast repair OBDII code P1358 in a Ford vehicle?

- Repairing code P1358 usually involves replacing or repairing faulty ignition system components, which can be a DIY task for enthusiasts with some mechanical experience. However, if in doubt, it's best to consult a professional mechanic.

5. Are there any tips for repairing OBDII code P1358 in a Ford vehicle?

- When repairing code P1358, make sure to thoroughly inspect and test each component of the ignition system to identify the root cause of the issue. Also, ensure proper installation and secure connections to avoid future problems.

6. Will driving with OBDII code P1358 in a Ford vehicle cause further damage?

- Continuing to drive with code P1358 may lead to more severe engine performance issues, such as increased fuel consumption, engine overheating, or potential damage to the catalytic converter. It's recommended to address the issue promptly.

7. How much does it typically cost to repair OBDII code P1358 in a Ford vehicle?

- The cost of repairing code P1358 can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to replace the components yourself or have them professionally repaired. It's best to obtain quotes from local mechanics.

8. Is it safe to clear the OBDII code P1358 and continue driving the Ford vehicle?

- Clearing the code without addressing the underlying issue may temporarily turn off the check engine light, but it won't fix the problem causing code P1358. It's not advisable to ignore the code and continue driving without proper diagnosis and repair.

9. Can extreme weather conditions contribute to triggering OBDII code P1358 in a Ford vehicle?

- Extreme weather conditions, such as high humidity or temperature fluctuations, can potentially exacerbate existing issues with the ignition system and contribute to triggering code P1358. It's important to maintain the vehicle properly in all weather conditions.

10. How long does it typically take to repair OBDII code P1358 in a Ford vehicle?

- The time required to repair code P1358 can vary based on the complexity of the issue and the availability of parts. Simple repairs may take a few hours, while more extensive diagnostics and repairs could take longer.

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