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Home/Cars/Subaru/Outback/5th Generation (2015-2019)/how to fix a P0302 misfire code on my Tesla Outback 5th Generation (2015-2019)

how to fix a P0302 misfire code on my Tesla Outback 5th Generation (2015-2019)

Subaru Outback 5th Generation (2015-2019)

Severity: highDifficulty: mediumError Code: P03022-4 hours
3 min read
518 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0302 cylinder 2 misfire in Tesla Outback (2015-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0302
Component
Engine
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical components.
  • ⚠Allow the engine to cool before performing maintenance to avoid burns.

Symptoms

  • •Check engine light illuminated
  • •Rough idle
  • •Loss of power during acceleration
  • •Decreased fuel economy
  • •Engine stalling intermittently

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to confirm P0302 and check for any additional codes.
  2. 2Visually inspect the spark plug and ignition coil in cylinder 2 for any signs of damage or wear.
  3. 3Check the condition of the fuel injector for cylinder 2; ensure it is functioning properly.
  4. 4Test the compression in cylinder 2 to verify the engine's mechanical condition.
  5. 5Inspect the wiring and connectors for the ignition coil and fuel injector for any signs of corrosion or damage.
  6. 6Examine the engine vacuum for leaks that may affect cylinder performance.

Solution

Solution

1. Preparation

  • Gather all necessary tools and parts.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Ensure the engine is cool before starting work.

2. Remove and Inspect Spark Plug

  • Tools Required: Spark plug socket, ratchet, torque wrench
  • Remove the spark plug from cylinder 2 using the spark plug socket.
  • Inspect the spark plug for wear, carbon deposits, or damage. Replace if necessary.

3. Replace Ignition Coil

  • Tools Required: Socket set, torque wrench
  • Remove the ignition coil from cylinder 2 by unscrewing the mounting bolts.
  • Disconnect the electrical connector from the ignition coil.
  • Install the new ignition coil and secure it with mounting bolts to the manufacturer's torque specifications.

4. Check and Clean Fuel Injector

  • Tools Required: Fuel injector cleaning kit
  • Disconnect the fuel line and wiring from the fuel injector in cylinder 2.
  • Remove the injector using the appropriate tools.
  • Clean the injector using a fuel injector cleaning kit or replace it if it is faulty.

5. Reassemble and Reconnect

  • Reinstall the spark plug and ignition coil.
  • Reconnect all electrical connectors and fuel lines.
  • Reconnect the negative battery terminal.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Spark plug socket
  • Ratchet
  • Torque wrench
  • Socket set
  • Fuel injector cleaning kit

Parts Required

  • Spark plug for cylinder 2
  • Ignition coil for cylinder 2
  • Fuel injector for cylinder 2 (if necessary)

Additional Information

Error CodeP0302
Component

Engine

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

6 items

Parts

3 items

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