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 noticed that the spark in cylinder 7 didn't last as long as it should. It's like when a sparkler fizzles out too quickly.
The engine control module (ECM) detected that the spark duration in cylinder 7 is shorter than expected, which can affect engine performance.
P1307 indicates that the ECM has detected a fault with the ignition system in cylinder 7, specifically that the spark duration is shorter than the pre-programmed threshold. This can lead to incomplete combustion and misfires.
• Engine misfire
• Rough idling
• Decreased fuel efficiency
• Faulty spark plug
• Defective ignition coil
• Wiring issues in the ignition system
ECM: Engine Control Module
Ignition Coil: A component that transforms the battery's voltage to a higher voltage to ignite the fuel.
• Inspect and test the spark plug in cylinder 7.
• Check the ignition coil for cylinder 7.
• Examine the wiring and connectors for damage or corrosion.
• Replace the spark plug in cylinder 7.
• Replace the ignition coil for cylinder 7.
• Repair or replace damaged wiring and connectors.
• Spark plug socket
• Multimeter
• OBD-II scanner
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly replace spark plugs as part of maintenance.
• Inspect ignition coils periodically.
• Ensure wiring is intact and free from corrosion.
Engine Performance
• Do not ignore the check engine light.
• Have the vehicle inspected by a professional if unsure.
• Regular maintenance can prevent such issues.
Check with the vehicle manufacturer for warranty coverage on ignition components.
This code has been associated with ignition system issues in various vehicles, often related to spark plug or coil failures.
Moderate – It should be addressed soon to prevent further engine performance issues.
Driving with a misfire can damage the catalytic converter and is not recommended.
• Engine running
• Use of an OBD-II scanner
Cylinder 7 is typically located on the engine block, and its position varies depending on the engine layout.
Q: Can I drive with a P1307 code?
A: It's not recommended to drive for long with this code as it can cause further engine damage.
Q: How often should I replace spark plugs?
A: Typically every 30,000 to 100,000 miles, depending on the type of spark plug and vehicle recommendations.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
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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.