How do I fix Code P0303?
What repairs can fix the P0303 code?
- Spark plug replacement for all cylinders.
- Replacing the cap & rotor, coil pack, or spark plug wiring as necessary.
- Intake air leaks repaired.
- Repairing fuel issues.
- Mechanical engine issues fixed.
What causes P303 Code?
A misfire from one or more cylinders can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure. Many times, P0303 occurs when there are worn-out spark plugs, spark plug wires, or a faulty ignition coil.
What does the error code p0303 mean on a car?
Error Code P0303 is described as Misfire Detected, Cylinder number 3. This means the vehicle’s computer has detected a misfire in the engine’s cylinder, specifically the cylinder #3. Error Code P0303 is a common error code that indicates a misfire problem in the engine’s cylinder, specifically cylinder #3.
What is the error code for cylinder 3 three misfire?
Error Code P0303: Cylinder 3 Three Misfire Detected. Error Code P0303 is described as Misfire Detected, Cylinder number 3. This means the vehicle’s computer has detected a misfire in the engine’s cylinder, specifically the cylinder #3.
When to set the p0303 DTC for cylinder 3?
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.
What are the symptoms of a p0303 misfire?
P0303 has a variety of symptoms. In some cases, the driver may only notice the Check Engine Light and no other symptoms. In other cars, the vehicle may run poorly, misfire, stall, become hard to start, and experience poor gas milage.
What does p0303 mean on cylinder number 3?
Commonly associated with codes: P0300 What Does P0303 Mean? P0303 indicates that cylinder number 3 is experiencing misfires. A misfire occurs when an insufficient amount of fuel is burning in a cylinder.
What should I do if my p0303 engine misfire?
Repairs for P0303 are listed in the order of most to least likely: 1 Spark plug replacement for all cylinders 2 Replacing the cap & rotor, coil pack, or spark plug wiring as necessary 3 Intake air leaks repaired 4 Repairing fuel issues 5 Mechanical engine issues fixed
What are the causes of a p0303 spark plug?
P0303 Possible Causes Faulty spark plug 3 Clogged or faulty fuel injector 3 Faulty ignition coil 3 Fuel injector 3 harness is open or shorted Fuel injector 3 circuit poor electrical connection Ignition coil 3 harness is open or shorted Ignition coil 3 circuit poor electrical connection Insufficient cylinder 3 compression
What is the diagnostic code for cylinder 3 misfire?
P0303 is a diagnostic trouble code (DTC) for “Cylinder 3 Misfire Detected”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.