Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the ignition coil in cylinder number 5. The coil might be too hot or not sending the right signals to make the engine run smoothly.
The ignition coil in cylinder 5 is either overheating or failing to send the necessary signal to ignite the fuel-air mixture.
The P3305 code indicates that the Engine Control Module (ECM) has detected an issue with the ignition coil on cylinder 5. This can occur due to an overtemperature condition or a lack of signal from the coil, which is essential for proper engine operation.
• Engine misfire
• Rough idling
• Reduced engine performance
• Faulty ignition coil
• Wiring issues or poor connections
• ECM malfunction
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the ignition coil and wiring for damage.
• Test the ignition coil for proper operation.
• Replace the faulty ignition coil.
• Repair or replace damaged wiring.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regularly check ignition components.
• Ensure proper engine cooling.
• Perform routine maintenance checks.
Engine Performance
• Avoid driving with a misfiring engine.
• Get the vehicle inspected by a professional.
• Monitor engine temperature regularly.
Check with your vehicle manufacturer for warranty coverage on ignition components.
This code has been associated with ignition coil issues in various vehicles, often due to overheating or electrical problems.
Moderate – It should be addressed soon to prevent further engine damage.
Ignoring this issue could lead to increased emissions and potential safety hazards.
• Engine at operating temperature
• Vehicle in park or neutral
The ignition coil for cylinder 5 is located on the engine, typically near the cylinder head.
Q: Can I drive my car with a P3305 code?
A: It's not recommended to drive with this code as it can cause engine damage and reduced performance.
Q: How can I prevent ignition coil issues?
A: Regular maintenance and ensuring the engine cooling system is working properly can help prevent issues.
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Universal · Digital multimeter
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.