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 spark in cylinder 2 of your car's engine isn't lasting as long as it should. It's like a sparkler that goes out too quickly.
The engine control module (ECM) has detected that the spark duration for cylinder 2 is shorter than expected, which can affect engine performance.
The P1302 code indicates that the ignition system's spark duration for cylinder 2 is below the threshold set by the manufacturer. This can be due to issues with the ignition coil, spark plug, or related wiring.
• Engine misfire
• Rough idling
• Reduced fuel efficiency
• Check Engine Light illuminated
• Faulty ignition coil
• Worn or damaged spark plug
• Faulty ignition control module
• Wiring issues or poor connections
ECM: Engine Control Module
Ignition Coil: A component that converts the battery's voltage to a higher voltage to create a spark in the spark plug.
• Use an OBD-II scanner to confirm the code.
• Inspect the spark plug and ignition coil for cylinder 2.
• Check the wiring and connections to the ignition system.
• Replace the spark plug for cylinder 2.
• Replace the ignition coil for cylinder 2.
• Repair or replace damaged wiring or connectors.
• OBD-II scanner
• Spark plug socket
• Multimeter
$100 - $300
Moderate
• Ford Focus
• Volkswagen Golf
• Toyota Camry
• Regularly replace spark plugs according to the maintenance schedule.
• Inspect ignition coils periodically.
• Ensure all electrical connections are secure.
Engine Performance
• Have the vehicle inspected by a professional if you're not comfortable with car repairs.
• Do not ignore the Check Engine Light, as it can lead to more severe issues.
Check with your vehicle's manufacturer for warranty coverage on ignition system components.
This code is often seen in vehicles with high mileage or those that have not had regular maintenance on ignition components.
Moderate – While the vehicle may still run, it can lead to more significant engine issues if not addressed.
Driving with a misfire can cause damage to the catalytic converter and increase emissions.
• Engine running
• Vehicle at operating temperature
The ignition coil and spark plug for cylinder 2 are typically located on the engine's cylinder head.
Q: Can I drive my car with a P1302 code?
A: It's not recommended to drive for extended periods with this code, as it can lead to more severe engine damage.
Q: How often should spark plugs be replaced?
A: Spark plugs should be replaced every 30,000 to 100,000 miles, depending on the type and vehicle specifications.
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Universal · Digital multimeter
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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.