Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that there's a problem with the part that makes the spark for cylinder number 6. It's like when a flashlight doesn't work because the batteries aren't making good contact.
This code indicates that there is a problem with the ignition coil for cylinder 6, specifically related to contact resistance or high impedance.
The P3313 code is triggered when the Engine Control Module (ECM) detects a high resistance or impedance in the ignition coil circuit for cylinder 6. This can affect the coil's ability to produce the necessary spark for combustion.
• Engine misfire
• Rough idle
• Check Engine Light illuminated
• Faulty ignition coil
• Corroded or damaged connectors
• Wiring issues in the ignition coil circuit
Ignition Coil: A component that transforms battery voltage into the high voltage needed to create a spark in the spark plugs.
Impedance: The resistance of an electric circuit or component to alternating current.
• Use an OBD-II scanner to confirm the code.
• Inspect the ignition coil and its connections for damage or corrosion.
• Check the wiring harness for continuity and resistance.
• Replace the ignition coil for cylinder 6.
• Clean or replace corroded connectors.
• Repair or replace damaged wiring.
• OBD-II scanner
• Multimeter
• Socket set
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect ignition components.
• Keep connectors clean and free of corrosion.
• Perform regular vehicle maintenance.
Engine Performance
• Have the vehicle inspected by a professional.
• Avoid driving the vehicle if it is misfiring.
Check with the vehicle manufacturer for warranty coverage on ignition components.
This code is commonly associated with aging ignition systems and poor maintenance practices.
Moderate – It should be addressed soon to prevent further engine damage.
Driving with a misfire can cause damage to the catalytic converter and increase emissions.
• Engine running
• Warm engine
The ignition coil for cylinder 6 is located on the engine, near the spark plug for cylinder 6.
Q: Can I drive with a P3313 code?
A: It's not recommended, as it can lead to further engine damage and increased emissions.
Q: How do I know if my ignition coil is bad?
A: Common signs include engine misfires, rough idling, and a Check Engine Light.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
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.