AutoCodes – Mazda – P0627 Mazda

P0627 Mazda Code - Suction Control Valve Circuit Open

Quick Answer

The Powertrain Control Module (PCM) monitors the suction control valve operation circuit signal frequency at PCM. Common causes include Faulty Suction Control Valve, Suction Control Valve harness is open or shorted, Suction Control Valve circuit poor electrical connection. 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: P0627 Mazda indicates Suction Control Valve Circuit Open.
Common causes: Common causes include Faulty Suction Control Valve, Suction Control Valve harness is open or shorted, Suction Control Valve circuit poor electrical connection.
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 855

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 04, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0627 Mazda Description

The Powertrain Control Module (PCM) monitors the suction control valve operation circuit signal frequency at PCM. If the difference between the suction control valve operation frequency at PCM and the monitored suction control valve operation circuit signal frequency at PCM exceeds the threshold, the PCM determines that suction control valve open circuit.

OBDII Code P0627 Mazda - Suction Control Valve Circuit Open - AutoCodes.com — P0627 Mazda Code - Suction Control Valve Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0627 Mazda?

Faulty Suction Control Valve
Suction Control Valve harness is open or shorted
Suction Control Valve circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0627 Mazda?

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 P0627 Mazda 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 P0627 Mazda code?

Need more information on how to fix the P0627 Mazda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0627 Mazda code diagnosed by a professional: Find a repair shop in your area

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 P0627 Mazda Code

1. What are the common symptoms of OBDII code P0627 in a Mazda related to the Suction Control Valve Circuit Open?

- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and a lack of power during acceleration.

2. What could cause the Suction Control Valve Circuit Open code P0627 in a Mazda?

- The code P0627 in a Mazda is often caused by a faulty suction control valve, damaged wiring in the suction control valve circuit, or a malfunctioning engine control module (ECM).

3. How can I diagnose the Suction Control Valve Circuit Open issue (OBDII code P0627) in my Mazda?

- Diagnose the issue by checking the suction control valve for proper operation, inspecting the wiring for any damage, and testing the ECM for functionality using a diagnostic scanner.

4. Can I still drive my Mazda with the OBDII code P0627 related to the Suction Control Valve Circuit Open?

- It is not recommended to drive your Mazda with the P0627 code as it can lead to further damage to the engine and affect its performance.

5. What are the repair options for fixing the Suction Control Valve Circuit Open code P0627 in a Mazda?

- Repair options include replacing the suction control valve, repairing any damaged wiring in the circuit, and resetting the ECM after fixing the issue.

6. Will resetting the check engine light resolve the OBDII code P0627 related to the Suction Control Valve Circuit Open in my Mazda?

- Resetting the check engine light may temporarily clear the code, but it will likely reappear if the underlying issue causing the P0627 code is not fixed.

7. How much does it typically cost to repair the Suction Control Valve Circuit Open code P0627 in a Mazda?

- The cost of repair can vary depending on the extent of the issue, but it generally ranges from $200 to $500 for parts and labor.

8. Are there any preventive maintenance tips to avoid encountering the OBDII code P0627 in a Mazda?

- To prevent the P0627 code, ensure regular maintenance checks, including inspecting the suction control valve and associated wiring for any signs of wear or damage.

9. Can a DIY enthusiast fix the Suction Control Valve Circuit Open code P0627 in a Mazda?

- While some experienced DIY enthusiasts may be able to diagnose and fix the issue, it is recommended to consult a professional mechanic for proper diagnosis and repair to avoid further complications.

10. How urgent is it to address the OBDII code P0627 related to the Suction Control Valve Circuit Open in my Mazda?

- It is important to address the P0627 code promptly to prevent potential engine damage and ensure optimal performance and fuel efficiency of your Mazda.