Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of your car that helps make the spark in one of the engine's cylinders. It's like when a spark plug doesn't work right, so the engine can't run smoothly.
The P2314 code is triggered when the engine control module (ECM) detects a malfunction in the secondary circuit of ignition coil E.
The ignition coil is responsible for transforming the battery's voltage to a higher voltage needed to create a spark in the spark plugs. The 'secondary circuit' refers to the high voltage side of the ignition coil. When the ECM detects an issue with the secondary circuit of ignition coil E, it sets the P2314 code.
• Check Engine Light is on
• Engine misfires
• Rough idling
• Poor fuel economy
• Faulty ignition coil E
• Damaged or corroded wiring or connectors
• Faulty spark plug
• ECM malfunction
ECM: Engine Control Module
Ignition Coil: A component that transforms low battery voltage to high voltage needed for spark plugs
Spark Plug: A device that delivers electric current to the combustion chamber to ignite the fuel-air mixture
• Use an OBD-II scanner to confirm the code.
• Inspect ignition coil E and its wiring for damage.
• Check the spark plug associated with ignition coil E.
• Test the ignition coil for proper operation.
• Replace faulty ignition coil E.
• Repair or replace damaged wiring or connectors.
• Replace the faulty spark plug.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
• Screwdriver
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect ignition components.
• Replace spark plugs as per maintenance schedule.
• Keep engine area clean to prevent moisture and debris.
Engine Performance
• Do not ignore the Check Engine Light.
• Address the issue promptly to avoid further engine damage.
Check if the ignition system is covered under the vehicle's powertrain warranty.
This code has been common in vehicles with coil-on-plug ignition systems, particularly in models with higher mileage.
Moderate – It should be addressed soon to prevent engine performance issues.
Driving with a misfiring engine can lead to increased emissions and potential damage to the catalytic converter.
• Engine at operating temperature
• Vehicle in park or neutral
Ignition coil E is typically located on top of the engine, directly above the cylinder it serves.
Q: Can I drive with a P2314 code?
A: It's not recommended as it can lead to poor engine performance and further damage.
Q: How do I know which coil is 'E'?
A: Refer to your vehicle's service manual for the coil numbering system.
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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.