Hyundai Kia Error Code P1300: How to Fix It

Medium 1-2 hours High Severity Verified June 2026
Error Code
P1300
Brand
Hyundai Kia
Product Type
automotive
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code P1300 in Hyundai and Kia vehicles indicates a problem with the ignition coil #1 primary circuit. This means the electrical circuit that controls ignition coil #1 is either open, shorted, or experiencing high resistance, which can cause misfiring, rough idling, and poor engine performance.
Ad

Tools You'll Need

How to Fix Error Code P1300

  1. Safety Preparation

    Never work on ignition components with engine running or hot. Disconnect battery to prevent electrical shock.
  2. Scan for Additional Codes

  3. Locate Ignition Coil #1

  4. Inspect Wiring and Connections

  5. Test Coil Connector Voltage

    Use insulated tools and avoid touching electrical contacts with bare hands.
  6. Remove and Inspect Ignition Coil

  7. Test Ignition Coil Resistance

  8. Inspect Spark Plug

  9. Replace Faulty Components

  10. Reassemble and Test

Parts You May Need

Ad

When to Call a Professional

Call a professional if you find multiple misfiring cylinders, if the problem persists after replacing coil and spark plug, if you discover engine compression issues, or if you're uncomfortable working with electrical components. Complex wiring harness repairs may also require professional diagnosis.

Frequently Asked Questions

Can I drive with P1300 code?
You should not drive with P1300 code as it indicates ignition system problems that can cause engine damage, poor fuel economy, and potentially catalytic converter damage. Address the issue promptly to prevent costly repairs.
What causes P1300 code in Hyundai Kia vehicles?
P1300 is commonly caused by a failed ignition coil, damaged wiring harness, corroded electrical connections, worn spark plugs, or rarely, PCM issues. Ignition coil failure is the most frequent cause.
How much does it cost to fix P1300?
Fixing P1300 typically costs $150-400 if you need to replace an ignition coil and spark plug. Professional labor adds $100-200. The cost varies depending on your vehicle's specific engine and whether multiple components need replacement.
Will P1300 clear itself?
P1300 will not clear itself as it indicates an active ignition system problem. The code may temporarily disappear after clearing with a scanner, but it will return until the underlying issue is repaired.
Can a bad spark plug cause P1300?
Yes, a severely worn or fouled spark plug can cause increased electrical load on the ignition coil, potentially leading to coil failure and triggering P1300. Always inspect and replace spark plugs when replacing ignition coils.