AutoCodesHyundai – P1342 Hyundai

P1342 Hyundai Code - #2 Ion Line Open

Quick Answer

P1342 Hyundai indicates #2 Ion Line Open. Common causes for P1342 Hyundai include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues. 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
P1342 Hyundai indicates #2 Ion Line Open.
Common causes
Common causes for P1342 Hyundai include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,701
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 17, 2019
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Code P1342 Hyundai Description

OBDII Code P1342 Hyundai - #2 Ion Line Open - AutoCodes.com
P1342 Hyundai Code - #2 Ion Line Open

How to Fix the DTC P1342 Hyundai?

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 P1342 Hyundai 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 P1342 Hyundai code?

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Need Help with the 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 P1342 Hyundai Code

1. What does the OBDII code P1342 mean on a Hyundai?

P1342 on a Hyundai indicates "#2 Ion Line Open," meaning there is an issue with the ion sensing circuit for cylinder #2, often related to ignition system faults.

2. What are the common symptoms of the P1342 code in a Hyundai?

Symptoms may include engine misfires, rough idling, reduced performance, poor fuel economy, and the check engine light turning on.

3. What causes the P1342 code to occur in a Hyundai?

Common causes include a faulty ignition coil, damaged spark plug, wiring issues in the ion sensing circuit, or a malfunction in the engine control module (ECM).

4. Can a bad spark plug cause the P1342 code in a Hyundai?

Yes, a worn or damaged spark plug in cylinder #2 can disrupt the ion sensing circuit and trigger the P1342 code.

5. How do I diagnose the P1342 code in my Hyundai?

Start by inspecting the ignition coil, spark plug, and wiring for cylinder #2. Use a multimeter to test for open circuits or poor connections in the ion sensing circuit.

6. Can I drive my Hyundai with the P1342 code active?

Driving with the P1342 code is not recommended, as it could lead to further engine damage or unsafe driving conditions due to misfires.

7. How do I fix the P1342 code on a Hyundai?

Repairs may include replacing the ignition coil or spark plug for cylinder #2, repairing or replacing damaged wiring, or updating/reprogramming the ECM if necessary.

8. How much does it cost to repair the P1342 code on a Hyundai?

Costs can range from $50-$150 for spark plug or ignition coil replacement to $300 or more for diagnosing and fixing wiring or ECM issues.

9. Can a P1342 code be caused by a faulty ECM in a Hyundai?

While rare, a malfunctioning ECM could cause the P1342 code if it fails to properly process signals from the ion sensing circuit.

10. Will clearing the P1342 code fix the issue permanently?

Clearing the code will turn off the check engine light temporarily but won’t resolve the underlying problem. Proper diagnosis and repair are necessary to fix the issue.

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