Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car's engine has a problem where one of the cylinders, specifically cylinder number 11, isn't working right. It's like one of the pistons isn't firing correctly, and the car's computer has stopped sending fuel to it to prevent damage.
A misfire in cylinder 11 has been detected by the engine's computer, and as a protective measure, it has cut off the fuel supply to that cylinder.
The P1363 code indicates that the engine control module (ECM) has detected a misfire in cylinder number 11. To prevent potential damage to the engine and catalytic converter, the ECM has initiated a fuel cut-off to that cylinder. This is a safety measure to avoid unburned fuel entering the exhaust system.
• Check Engine Light is on
• Rough engine idle
• Reduced engine performance
• Increased fuel consumption
• Possible engine stalling
• Faulty spark plug in cylinder 11
• Defective ignition coil
• Fuel injector malfunction
• Vacuum leak near cylinder 11
• Engine mechanical issue (e.g., compression problem)
ECM: Engine Control Module
Misfire: Failure of the air/fuel mixture in a cylinder to ignite properly
• Use an OBD-II scanner to confirm the code.
• Inspect the spark plug and ignition coil for cylinder 11.
• Check for vacuum leaks near cylinder 11.
• Perform a compression test on cylinder 11.
• Examine the fuel injector for proper operation.
• Replace the spark plug in cylinder 11.
• Replace the ignition coil if defective.
• Repair any vacuum leaks found.
• Replace or clean the fuel injector if necessary.
• Address any engine mechanical issues found.
• OBD-II scanner
• Spark plug socket
• Compression tester
• Multimeter
• Fuel injector tester
$100 - $500
Moderate
• BMW 7 Series
• Mercedes-Benz S-Class
• Audi A8
• Regularly replace spark plugs and ignition components.
• Perform routine engine maintenance.
• Use high-quality fuel.
Engine Performance
• Avoid driving the vehicle until repaired to prevent further damage.
• Have the vehicle inspected by a professional mechanic.
Check with the vehicle manufacturer for warranty coverage on engine components.
Misfire codes have been common in vehicles with high mileage or poor maintenance history.
High – Continued driving can lead to engine damage or catalytic converter failure.
Driving with a misfire can lead to increased emissions and potential safety hazards.
• Engine at operating temperature
• Vehicle in a safe, stationary position
Cylinder 11 is located on the engine block, depending on the engine layout (V-type or inline).
Q: Can I drive with a P1363 code?
A: It's not recommended, as it can cause further engine damage.
Q: How can I prevent a misfire?
A: Regular maintenance, including spark plug and ignition component replacements, can help prevent misfires.
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Fitment Required · Vehicle-fitment part
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
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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.