AutoCodes – Suzuki – P1408 Suzuki

P1408 Suzuki Code - Manifold Differential Pressure Sensor Circuit Malfunction

Quick Answer

P1408 Suzuki indicates Manifold Differential Pressure Sensor Circuit Malfunction. Common causes include Faulty Manifold Differential Pressure (MAP) Sensor, MAP Sensor harness is open or shorted, MAP Sensor circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1408 Suzuki indicates Manifold Differential Pressure Sensor Circuit Malfunction.
Common causes: Common causes include Faulty Manifold Differential Pressure (MAP) Sensor, MAP Sensor harness is open or shorted, MAP Sensor circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 13,232

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1408 Suzuki Description

OBDII Code P1408 Suzuki - Manifold Differential Pressure Sensor Circuit Malfunction - AutoCodes.com — P1408 Suzuki Code - Manifold Differential Pressure Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P1408 Suzuki?

Faulty Manifold Differential Pressure (MAP) Sensor
MAP Sensor harness is open or shorted
MAP Sensor circuit poor electrical connection

How to Fix the DTC P1408 Suzuki?

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 P1408 Suzuki 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.

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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 P1408 Suzuki Code

1. What are the common symptoms of OBDII code P1408 in a Suzuki related to the Manifold Differential Pressure Sensor Circuit Malfunction?

- Common symptoms include a check engine light, reduced engine performance, rough idling, and potential stalling.

2. What are the possible causes of the Manifold Differential Pressure Sensor Circuit Malfunction in a Suzuki triggering the P1408 code?

- Causes may include a faulty manifold differential pressure sensor, damaged wiring or connectors, vacuum leaks, or issues with the engine's air intake system.

3. How can I diagnose the OBDII code P1408 in my Suzuki to confirm it is related to the Manifold Differential Pressure Sensor Circuit Malfunction?

- You can use an OBDII scanner to read the trouble code and then perform a visual inspection of the sensor, wiring, and connectors for any signs of damage or wear.

4. Are there any quick checks or tests I can perform at home to troubleshoot the P1408 code in my Suzuki?

- You can visually inspect the sensor and its connections, check for vacuum leaks, and ensure the air intake system is free from obstructions or damage.

5. Can I drive my Suzuki with the P1408 code related to the Manifold Differential Pressure Sensor Circuit Malfunction?

- While the vehicle may still be drivable, it is recommended to address the issue promptly to prevent further damage and ensure optimal engine performance.

6. How should I repair the Manifold Differential Pressure Sensor Circuit Malfunction triggering the P1408 code in my Suzuki?

- Repair methods may include replacing the faulty sensor, repairing damaged wiring or connectors, fixing vacuum leaks, or addressing issues in the air intake system.

7. Is it necessary to reset the OBDII code P1408 in my Suzuki after repairing the Manifold Differential Pressure Sensor Circuit Malfunction?

- Yes, it is recommended to clear the code using an OBDII scanner after completing the repairs to reset the check engine light and monitor the system for any recurring issues.

8. Are there any preventive maintenance steps I can take to avoid encountering the P1408 code in my Suzuki in the future?

- Regularly inspecting and maintaining the manifold differential pressure sensor, checking for vacuum leaks, and ensuring the air intake system is in good condition can help prevent this issue.

9. Can a DIY enthusiast with basic automotive knowledge repair the Manifold Differential Pressure Sensor Circuit Malfunction causing the P1408 code in a Suzuki?

- Depending on the exact cause, some repairs related to this code can be done by DIY enthusiasts, but it is recommended to consult a professional if unsure about the diagnosis or repair process.

10. How long does it typically take to repair the Manifold Differential Pressure Sensor Circuit Malfunction leading to the P1408 code in a Suzuki?

- The repair time can vary based on the exact cause and complexity of the issue, but it may take anywhere from 1-3 hours to complete the necessary repairs.