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 spark plug or coil in cylinder number 3 of your car's engine. It's like when a sparkler doesn't light up properly.
The P136F code indicates an issue with the ion sensing circuit in the ignition coil for cylinder 3, which affects the engine's ability to monitor combustion quality.
The ion sensing circuit in the ignition coil is responsible for detecting combustion quality by measuring ionization levels in the cylinder. If the circuit in cylinder 3 is malfunctioning, it can lead to misfires or inefficient combustion.
• Engine misfire
• Rough idling
• Reduced fuel efficiency
• Faulty ignition coil in cylinder 3
• Worn or damaged spark plug
• Wiring issues or poor connection to the ignition coil
Ignition Coil: A component that transforms the battery's voltage to a higher voltage to create a spark in the spark plugs.
Misfire: A failure of the air/fuel mixture in the engine cylinder to ignite properly.
• Use an OBD-II scanner to confirm the P136F code.
• Inspect the ignition coil and spark plug in cylinder 3 for damage.
• Check the wiring and connections to the ignition coil.
• Replace the ignition coil for cylinder 3.
• Replace the spark plug in cylinder 3.
• Repair or replace damaged wiring or connectors.
• OBD-II scanner
• Socket set
• Multimeter
$100 - $300
Moderate
• BMW 3 Series
• Mini Cooper
• Peugeot 308
• Regularly replace spark plugs as part of maintenance.
• Inspect ignition coils during routine service.
• Ensure all electrical connections are secure.
Engine Performance
• Address the issue promptly to avoid further engine damage.
• Consult a professional mechanic if unsure about repairs.
Check vehicle warranty for coverage on ignition components.
This code has been associated with ignition coil issues in certain European vehicles.
Moderate – Should be addressed soon to prevent engine performance issues.
Driving with a misfire can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in idle or under load
The ignition coil for cylinder 3 is located on top of the engine, above the cylinder head.
Q: Can I drive with a P136F code?
A: It's not recommended to drive for long periods with this code, as it can lead to engine damage.
Q: How do I clear a P136F code?
A: After repairs, use an OBD-II scanner to clear the code from the vehicle's computer.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
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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.