The OBD code P0305 for a Toyota indicates a misfire in cylinder 5. This affects the ignition system.
Symptoms include the engine light being on, lack of power, hard starting, and engine hesitation.
Causes can range from a faulty spark plug or ignition coil to issues with fuel injectors or wiring connections.
While not an immediate danger, it should be addressed promptly to prevent further damage.
A possible fix involves inspecting and potentially replacing components like spark plugs, ignition coils, or fuel injectors, as well as checking wiring harnesses and connectors for any damage.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
I know how frustrating it is to see that warning light pop up again and again. You don’t need to spend money at the mechanic just to clear it. With this pocket-friendly automatic car scanner, you can do it yourself in seconds and and avoid the time and inconvenience of driving to a mechanic. Just plug it in, connect to your Android or iOS phone, and instantly see live data. Understand the fault code, clear it right away, and decide if it’s something urgent or if you’re good to drive. It even monitors your car and sends notifications to your phone, so you’re always in control. Simple, fast, and stress-free—today’s offer price!
Symptoms of the Toyota p0305 OBD Code
Engine misfires on cylinder 5 in a Toyota, causing rough idling and lack of power.
- With Toyota OBD code P0305, the Engine Light will be ON.
- Lack/loss of power may be experienced.
- Hard start can occur.
- Engine hesitation might be noticeable.
Causes of the Toyota p0305 OBD Code
Do you know you can clear most fault codes—but some could mean serious danger? Don’t take chances with your safety or your family’s safety. This budget-friendly car scanner makes it easy to clear fault codes in seconds while showing you exactly what’s wrong. Plug it in, connect to your Android or iOS phone, and instantly check live data. You’ll know if it’s a minor issue you can clear or something serious that needs attention—so you can drive safely and stress-free. (Today’s Deal)
Fault code P0305 on a Toyota indicates a misfire in cylinder 5.
- P0305 can be caused by a faulty spark plug #5.
- A faulty ignition coil #5.
- Clogged or faulty fuel injector #5.
- Fuel injectors #5 harness is open or shorted.
- Fuel injectors #5 circuit poor electrical connection.
- Ignition coils #5 harness is open or shorted.
- Ignition coils #5 circuit poor electrical connection.
- Incorrect fuel pressure.
- Faulty Mass Air Flow (MAF) Sensor.
- Faulty Engine Control Module (ECM).
- Faulty Engine Coolant Temperature (ECT) Sensor.
Fixing Toyota Error Code p0305 Step By Step
Address the misfire on cylinder 5 in a Toyota by checking ignition components and fuel delivery.
- To fix a Toyota OBDII code P0305, first, review the ‘Possible Causes’ mentioned above and visually examine the corresponding wiring harness and connectors.
- Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Next, swap the ignition coil from cylinder 5 with another cylinder to see if the misfire follows.
- If the misfire moves to the other cylinder, replace the ignition coil.
- Check the spark plug in cylinder 5 for fouling or damage and replace if necessary.
- Perform a compression test on cylinder 5 to check for any internal engine issues causing the misfire.
- Finally, reset the ECU or PCM to clear the fault code and see if the issue returns after driving the vehicle.
Cost Of Fixing Toyota p0305 Fault Code
Diagnosing and repairing fault code P0305 on a Toyota typically involves addressing cylinder 5 misfire issues.
The cost to diagnose and fix a Toyota OBD code P0305 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
The total cost depends on labor rates, shop fees, and the complexity of the repair needed.
Details of the Toyota p0305 OBD Code
Toyota fault code P0305 indicates a misfire in cylinder 5.
Code P0305 means a misfire was detected in cylinder 5. It’s triggered by the Engine Control Module (ECM) based on crankshaft speed fluctuations.
The signal involved is the feedback from the crankshaft position sensor, which helps the ECM monitor the rotational speed of the engine and detect misfires in specific cylinders.
Mechanic’s Tech Notes
Detailed information on diagnosing and repairing Toyota fault code P0305 related to cylinder 5 misfire.
To diagnose and fix OBDII code P0305 on a Toyota, start by checking the ignition coil, spark plug, and fuel injector for cylinder 5. Use a voltmeter to test the coil’s primary and secondary resistance.
Inspect the spark plug for fouling or wear.
Swap the fuel injector with another cylinder to see if the misfire moves.
Check for vacuum leaks and perform a compression test.
If no issues are found, consider testing the engine control module (ECM) and wiring harness for faults.
A scan tool can help monitor live data and identify any anomalies.
Clear the code after repairs and test drive to confirm the issue is resolved.
FAQ
Common causes of OBD code P0305 in a Toyota: Faulty spark plug #5, faulty ignition coil #5, clogged/faulty fuel injector #5, or intake air leak.
Diagnose P0305 in Toyota: Check spark plug, ignition coil #5, fuel injector #5, wiring harness, connectors. Look for damage, corrosion. Fix as needed.
Do not continue driving with code P0305 in your Toyota. Check spark plug, ignition coil, fuel injector, and related components for issues to prevent further damage.
Wrap Up
If your Toyota is experiencing a rough idle, loss of power, or misfires, along with OBDII code P0305, it may be caused by a faulty ignition coil, spark plug, fuel injector, or low compression in cylinder 5. Wiring issues or a vacuum leak could also trigger this fault code.
To address Toyota OBDII code P0305, start by inspecting the ignition coil, spark plug, and fuel injector for cylinder 5. Check the wiring harness and connectors for any damage or corrosion.
Perform a compression test on cylinder 5 to rule out any internal engine
