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P0302 2013 Toyota RAV4 Code - Cylinder 2 Misfire Detected

Quick Answer

When the engine misfires, high concentrations of Hydrocarbons (HC) enter the exhaust gas. Common causes include Intake air leak, Faulty spark plug #2, Faulty ignition coil #2. 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
P0302 2013 Toyota RAV4 indicates Cylinder 2 Misfire Detected.
Common causes
Common causes include Intake air leak, Faulty spark plug #2, Faulty ignition coil #2.
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 728
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Aug 25, 2022
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Code P0302 2013 Toyota RAV4 Description

When the engine misfires, high concentrations of Hydrocarbons (HC) enter the exhaust gas. Extremely high hydrocarbon concentration levels can cause an increase in exhaust emission levels. Extremely high concentrations of hydrocarbons can also cause increases in the three-way catalytic converter temperature, which may cause damage to the three-way catalytic converter. To prevent this increase in emissions and to limit the possibility of thermal damage, the Engine Control Module (ECM) monitors the misfire count. When the temperature of the three-way catalytic converter reaches the point of thermal degradation, the ECM blinks the MIL. To monitor misfires, the ECM uses both the camshaft position sensor and the crankshaft position sensor. The camshaft position sensor is used to identify any misfiring cylinders and the crankshaft position sensor is used to measure variations in the crankshaft rotation speed. Misfires are counted when the crankshaft rotation speed variations exceed predetermined thresholds. If the misfire count exceeds the threshold levels and could cause emission control system performance deterioration, the ECM illuminates the MIL and stores a Diagnostic Trouble Code (DTC).
OBDII Code P0302 2013 Toyota RAV4 - Cylinder 2 Misfire Detected - AutoCodes.com
P0302 2013 Toyota RAV4 Code - Cylinder 2 Misfire Detected
What does this mean?

What are the Possible Causes of the DTC P0302 2013 Toyota RAV4?

  • Intake air leak
  • Faulty spark plug #2
  • Faulty ignition coil #2
  • Clogged or faulty fuel injector #2
  • Fuel injectors #2 harness is open or shorted
  • Fuel Injectors #2 circuit poor electrical connection
  • Ignition coils #2 harness is open or shorted
  • Ignition coils #2 circuit poor electrical connection
  • Incorrect Fuel pressure
  • Faulty Mass Air Flow (MAF) Sensor
  • Faulty Engine Control Module (ECM)
  • Faulty Engine Coolant Temperature (ECT) Sensor

How to Fix the DTC P0302 2013 Toyota RAV4?

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 does this mean?

Code Tech Notes

The P0302 code means that cylinder #2 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #2. If the problem persists more tests need to be done to diagnose the problem. See "Possible Causes" for the most common problems.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0302 2013 Toyota RAV4 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 P0302 2013 Toyota RAV4 code?

Need more information on how to fix the P0302 2013 Toyota RAV4 code? Get Access to Factory Service Manuals

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 P0302 2013 Toyota RAV4 Code

1. What are the common symptoms of OBDII code P0302 (Cylinder 2 Misfire Detected) in a 2013 Toyota RAV4?

- Common symptoms include rough idle, loss of power, engine vibration, and potential hesitation during acceleration.

2. What are the possible causes of a cylinder 2 misfire in a 2013 Toyota RAV4?

- Causes may include faulty spark plugs, ignition coils, fuel injectors, vacuum leaks, low compression, or issues with the engine's timing.

3. How can I diagnose the source of the cylinder 2 misfire in my 2013 Toyota RAV4?

- Diagnostic steps may involve checking spark plugs, ignition coils, fuel injectors, vacuum lines, compression levels, and using a scan tool to monitor live data.

4. Can a dirty or clogged fuel injector cause OBDII code P0302 in a 2013 Toyota RAV4?

- Yes, a dirty or clogged fuel injector can disrupt the proper fuel delivery to cylinder 2, leading to a misfire and triggering the P0302 code.

5. What are some tips for repairing OBDII code P0302 in a 2013 Toyota RAV4?

- Repair tips may include replacing spark plugs, ignition coils, fuel injectors, addressing vacuum leaks, performing a compression test, and ensuring proper engine timing.

6. Is it safe to continue driving my 2013 Toyota RAV4 with OBDII code P0302 (Cylinder 2 Misfire Detected)?

- It is not recommended to drive the vehicle with a misfire as it can cause damage to the catalytic converter, decrease fuel efficiency, and lead to potential engine issues.

7. Can a bad ignition coil cause a cylinder 2 misfire in a 2013 Toyota RAV4?

- Yes, a faulty ignition coil can result in a weak or no spark in cylinder 2, leading to a misfire condition and triggering the P0302 trouble code.

8. How important is it to address OBDII code P0302 promptly in a 2013 Toyota RAV4?

- It is essential to address the misfire issue promptly to prevent further damage to the engine, ensure optimal performance, and maintain fuel efficiency.

9. Will resetting the OBDII system clear the P0302 code in a 2013 Toyota RAV4?

- Resetting the system may temporarily clear the code, but if the underlying issue causing the misfire is not resolved, the code is likely to reappear after driving.

10. What is the average cost to repair OBDII code P0302 (Cylinder 2 Misfire Detected) in a 2013 Toyota RAV4?

- The repair cost can vary depending on the exact cause of the misfire, but it may range from $100 to $500 or more, including parts and labor.

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