Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means the car's computer is having trouble adjusting the amount of fuel going into cylinder number 6. It's like trying to keep a balance but you can't because something is off.
The engine control module (ECM) detects that the fuel trim for cylinder 6 has reached its minimum limit, indicating a potential issue with fuel delivery or air intake.
The P02AF code indicates that the ECM has detected that the fuel trim for cylinder 6 has reached its minimum adjustment limit. This can be due to a variety of reasons, such as a vacuum leak, a faulty fuel injector, or an issue with the air intake system. The fuel trim is a parameter that the ECM adjusts to maintain the optimal air-fuel mixture for combustion. When this trim reaches its limit, it means the ECM can no longer compensate for the discrepancy.
• Check Engine Light is on
• Poor engine performance
• Rough idling
• Increased fuel consumption
• Misfires in cylinder 6
• Faulty fuel injector for cylinder 6
• Vacuum leak near cylinder 6
• Clogged air filter
• Faulty oxygen sensor
• Exhaust leak near cylinder 6
ECM: Engine Control Module, the computer that controls the engine's operation.
Fuel Trim: Adjustments made by the ECM to the amount of fuel injected to maintain optimal combustion.
• Use an OBD-II scanner to confirm the code.
• Inspect the fuel injector for cylinder 6.
• Check for vacuum leaks near cylinder 6.
• Inspect the air intake system and filter.
• Check the oxygen sensor operation.
• Replace or clean the fuel injector for cylinder 6.
• Repair any vacuum leaks found near cylinder 6.
• Replace the air filter if clogged.
• Replace the oxygen sensor if faulty.
• Repair any exhaust leaks near cylinder 6.
• OBD-II scanner
• Fuel injector tester
• Vacuum gauge
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly replace the air filter.
• Perform routine maintenance checks.
• Use high-quality fuel.
Engine Performance
• Have the vehicle inspected by a professional mechanic.
• Do not ignore the Check Engine Light.
• Regularly maintain your vehicle to prevent issues.
Check with your vehicle manufacturer for warranty coverage on fuel system components.
This code is commonly associated with fuel system issues and has been reported in vehicles with higher mileage.
Moderate – It should be addressed soon to prevent further engine performance issues.
Driving with this code may lead to decreased performance and increased emissions, which could be against local regulations.
• Engine at operating temperature
• Idle and under load conditions
Cylinder 6 is located in the engine block, typically on the side or rear, depending on the engine configuration.
Q: Can I drive with a P02AF code?
A: It's possible to drive short distances, but it's not recommended as it can lead to further engine issues.
Q: Will a P02AF code affect fuel economy?
A: Yes, it can lead to increased fuel consumption due to improper fuel-air mixture.
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Fitment Required · Vehicle-fitment part
Relevant when the code or supporting diagnostics point toward upstream or downstream oxygen-sensor faults.
This code family often involves upstream or downstream oxygen-sensor diagnosis.
Verify exact sensor position and vehicle fitment before buying.
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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.