Table of Contents
What does po304 code mean?
misfires
What Does P0304 Mean? P0304 indicates that cylinder number 4 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 is P0304 cylinder 4 misfire detected?
If you suddenly see the trouble code P0304 or the cylinder 4 misfire detected, it means that cylinder 4 is not firing properly. This happens when your vehicle’s Engine Control Unit or the ECU detects that there is something wrong with it. The ECU is known as the brain of the engine.
What would cause a P0304 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, P0304 occurs when there are worn out spark plugs, spark plug wires, or a faulty ignition coil.
What does p0304 mean on a car engine?
P0304 indicates that cylinder number 4 is experiencing misfires. A misfire occurs when an insufficient amount of fuel is burning in a cylinder. The efficient burning of fuel is essential to engine operation as the combustion of fuel is what provides the energy to power the engine.
When do you need to fix a p0304 misfire?
When P0304 occurs, it should be fixed immediately as long term driving with engine misfires could cause consequential damage to your engine. Many times, P0304 occurs when there are worn out spark plugs, spark plug wires, or a faulty ignition coil.
What does it mean when your spark plug is p0301?
If the misfire moved to cylinder number 1 (P0301), then you have determined that the coil pack is faulty and needs replacement. You can do the same test with the spark plug, i.e., move cylinder 4 plug to say cylinder 2 and if the misfire is now P0302 then the plugs are at fault.
What causes a car to set a misfire code?
Vehicles can set misfire codes when badly warped and out of round rear brake drums violently jerk the entire powertrain when the vehicle slows from highway speeds. Make sure that you have the vehicle properly inspected in order to determine the root cause of the misfire.