Cylinder 7 Misfire Detected
Your engine is not burning fuel correctly in cylinder 7. This can cause rough running, poor power, and damage to the catalytic converter if driven too long.
You may be able to move the vehicle short distances, but driving with an active misfire can damage the catalytic converter and may worsen engine damage. If the engine is shaking badly, flashing the check engine light, or losing power, stop driving and diagnose it right away.
P0307 means the engine computer has detected a misfire on cylinder 7. The misfire may be occasional or continuous, and the cause can be ignition, fuel delivery, air leak, compression, or wiring related. If the misfire is severe, the ECM may flash the check engine light to warn of possible catalytic converter damage.
Only for short, cautious trips if the engine runs normally and the light is not flashing. If it is shaking, losing power, or the light is flashing, stop driving and diagnose it immediately.
A worn spark plug or a bad ignition coil on cylinder 7 is usually the first thing to check.
Sometimes the code may clear temporarily, but the underlying problem usually remains and the misfire can return.
Yes. If cylinder 7 is not getting the right amount of fuel, it can misfire and set this code.