AutoCodes – Subaru – P1422 Subaru

P1422 Subaru Code - EVAP Purge Control Valve Circuit High Input

Quick Answer

P1422 Subaru indicates EVAP Purge Control Valve Circuit High Input. Common causes include Faulty EVAP Purge Control Valve, EVAP Purge Control Valve harness is open or shorted, EVAP Purge 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: P1422 Subaru indicates EVAP Purge Control Valve Circuit High Input.
Common causes: Common causes include Faulty EVAP Purge Control Valve, EVAP Purge Control Valve harness is open or shorted, EVAP Purge 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 5,935

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 Aug 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1422 Subaru Description

OBDII Code P1422 Subaru - EVAP Purge Control Valve Circuit High Input - AutoCodes.com — P1422 Subaru Code - EVAP Purge Control Valve Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P1422 Subaru?

Faulty EVAP Purge Control Valve
EVAP Purge Control Valve harness is open or shorted
EVAP Purge Control Valve circuit poor electrical connection

How to Fix the DTC P1422 Subaru?

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 P1422 Subaru 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 P1422 Subaru 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 P1422 Subaru Code

1. What does the OBDII code P1422 mean on a Subaru?

P1422 indicates a high input issue in the EVAP Purge Control Valve Circuit, which is part of the vehicle's evaporative emissions control system.

2. What are the common symptoms of the P1422 code in a Subaru?

Symptoms may include the check engine light turning on, poor fuel efficiency, rough idling, difficulty starting the engine, or a noticeable fuel smell.

3. What causes the P1422 code on a Subaru?

Common causes include a faulty EVAP purge control valve, damaged wiring or connectors in the circuit, a malfunctioning ECM, or a blockage in the EVAP system.

4. Can I drive my Subaru with the P1422 code?

While you may still be able to drive, it is not recommended as it can lead to increased emissions, potential engine performance issues, and difficulty passing emissions tests.

5. How do I diagnose the P1422 code in my Subaru?

Begin by using an OBDII scanner to confirm the code, then inspect the EVAP purge control valve, wiring, and connectors for damage or corrosion. Perform a continuity test on the circuit if needed.

6. How do I fix the P1422 code on a Subaru?

Repairs may include replacing the EVAP purge control valve, repairing damaged wiring or connectors, clearing blockages in the EVAP system, or in rare cases, reprogramming or replacing the ECM.

7. What tools are needed to fix the P1422 code?

You may need an OBDII scanner, a multimeter for electrical testing, basic hand tools, and potentially a vacuum pump to test the EVAP system.

8. How much does it cost to repair the P1422 code?

Costs can vary but typically range from $150 to $400, depending on whether you need to replace the purge valve, repair wiring, or perform other fixes.

9. Can a loose gas cap cause the P1422 code on a Subaru?

A loose gas cap is unlikely to trigger P1422, as this code specifically relates to the purge control valve circuit, not the overall EVAP system pressure integrity.

10. How can I prevent the P1422 code from reoccurring?

Regular maintenance of the EVAP system, inspecting wiring for wear, and promptly addressing any check engine light issues can help prevent this code from reappearing.