Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that the part of the car that sprays fuel into the engine, called an injector, is stuck open on the third cylinder. It's like a faucet that won't stop pouring water.
The fuel injector for the third cylinder is not closing properly, causing too much fuel to enter the engine.
The P301C code indicates that the fuel injector for cylinder number 3 is stuck in the open position, leading to an excessive amount of fuel being delivered to the engine. This can cause rough running, increased emissions, and potential engine damage.
• Engine misfire
• Poor fuel economy
• Check engine light on
• Faulty fuel injector
• Wiring issues in the injector circuit
• ECU malfunction
Injector: A device that sprays fuel into the engine's cylinders.
ECU: Engine Control Unit, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for the injector.
• Test the injector for proper operation.
• Replace the faulty injector.
• Repair or replace damaged wiring.
• Reprogram or replace the ECU if necessary.
• OBD-II scanner
• Multimeter
• Fuel injector tester
$200 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Use quality fuel
• Keep the fuel system clean
Engine Performance
• Address the issue promptly to avoid engine damage.
• Consult a professional mechanic for accurate diagnosis.
Check with your vehicle manufacturer for warranty coverage on fuel injectors.
This code has been associated with issues in vehicles with direct fuel injection systems.
High – If not addressed, it can lead to significant engine damage.
Continuing to drive with this issue can lead to increased emissions and potential safety hazards.
• Engine running
• Warm engine temperature
The fuel injector is located on the engine, typically near the intake manifold.
Q: Can I drive with a P301C code?
A: It's not recommended to drive with this code as it can cause engine damage.
Q: How do I fix a stuck open injector?
A: You may need to replace the injector or repair the wiring. Consult a mechanic for a proper diagnosis.
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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.