AutoCodes – Volkswagen – P1490 Volkswagen

P1490 Volkswagen Code - EVAP Canister Purge Regulator Valve 2 Short To Ground

Quick Answer

P1490 Volkswagen indicates EVAP Canister Purge Regulator Valve 2 Short To Ground. Common causes include Faulty EVAP Canister Purge Regulator Valve, EVAP Canister Purge Regulator Valve harness is open or shorted, EVAP Canister Purge Regulator 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
P1490 Volkswagen indicates EVAP Canister Purge Regulator Valve 2 Short To Ground.
Common causes
Common causes include Faulty EVAP Canister Purge Regulator Valve, EVAP Canister Purge Regulator Valve harness is open or shorted, EVAP Canister Purge Regulator 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 3,927
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 24, 2019
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Code P1490 Volkswagen Description

OBDII Code P1490 Volkswagen - EVAP Canister Purge Regulator Valve 2 Short To Ground - AutoCodes.com
P1490 Volkswagen Code - EVAP Canister Purge Regulator Valve 2 Short To Ground

What are the Possible Causes of the DTC P1490 Volkswagen?

  • Faulty EVAP Canister Purge Regulator Valve
  • EVAP Canister Purge Regulator Valve harness is open or shorted
  • EVAP Canister Purge Regulator Valve circuit poor electrical connection

How to Fix the DTC P1490 Volkswagen?

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 P1490 Volkswagen 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 P1490 Volkswagen 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 P1490 Volkswagen Code

What does the OBDII code P1490 mean for a Volkswagen?

P1490 indicates a problem with the EVAP Canister Purge Regulator Valve 2, specifically that there is a short to ground in the circuit.

What are the common symptoms of code P1490 in a Volkswagen?

Symptoms may include a check engine light, rough idle, difficulty starting, reduced fuel efficiency, and an increase in emissions.

What causes code P1490 in a Volkswagen?

The code is typically caused by a shorted or damaged EVAP purge valve, wiring issues like frayed or exposed wires, or a faulty electrical connector.

Can driving with code P1490 damage the vehicle?

While it may not cause immediate harm, ignoring the issue can lead to increased emissions, poor fuel efficiency, and potential damage to other components in the EVAP system.

How do you diagnose code P1490 in a Volkswagen?

Start by checking the EVAP purge valve and wiring for visible damage, then use a multimeter to test for continuity and shorts in the circuit.

How do you fix code P1490 in a Volkswagen?

Repairs may involve replacing the EVAP purge valve, repairing damaged wiring, or cleaning and reseating electrical connectors.

What tools are needed to fix code P1490?

Basic tools include a multimeter, a wiring diagram for the EVAP system, and possibly a socket set for removing the purge valve.

Is code P1490 specific to certain Volkswagen models?

No, P1490 can occur in various Volkswagen models with similar EVAP system designs, but the location of the purge valve may vary.

How much does it cost to repair code P1490 in a Volkswagen?

Costs vary but typically range from $100 to $300 for parts and labor, depending on the extent of the damage and your location.

Can a faulty gas cap trigger code P1490?

No, a faulty gas cap is unlikely to cause P1490, as this code specifically relates to the purge regulator valve and its circuit.

Discuss the causes and fixes for P1490 Volkswagen OBDII Code

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