What is P0303 Cylinder 3 misfire detected?

What the P0303 code means. The P0303 DTC is set when the ECU detects multiple misfires from cylinder 3. Misfires cause the ECU to set the Check Engine Light and put the vehicle into a failsafe mode to prevent damage. The Check Engine Light will remain until the code is repaired.

Can a bad catalytic converter cause a P0303 code?

For example, the issue can stem from a faulty spark plug or wire, which in the grand scheme of things is relatively easy to repair. However, the error code may also occur because of a faulty catalytic converter or defective computer system, which can vary in expense.

What causes code P0303?

P0303 indicates that cylinder number 3 is experiencing misfires. A misfire occurs when an insufficient amount of fuel is burning in a cylinder. A misfire from one or more cylinders can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure.

What causes trouble code P0303?

What is causing cylinder 3 to misfire?

P0303 indicates that cylinder number 3 is experiencing misfires. A misfire occurs when an insufficient amount of fuel is burning in a cylinder.

What is the problem code p0303?

This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model. A P0303 code means that the the car’s computer has detected that one of the engine’s cylinders is not firing properly.

What does trouble code p0303 mean?

P0303 is a generic diagnostic trouble code (DTC) indicating an issue with the firing of cylinder 3. This code may be seen with other misfire codes as well as lean / rich condition codes.

What does misfire code p0305 mean?

P0305 is a cylinder specific misfire code, which means that Cylinder 5 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 5 is that it’s going to be the fifth cylinder in the firing order.