The P0304 code will be seen in cars where the ECU has detected that cylinder 4 is not firing properly. The ECU monitors the operation of all cylinders to ensure they are all firing on time, so when one misfires repeatedly, a Check Engine Light is set.
What would cause a misfire on cylinder 4?
Cylinder 4 misfires can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure. The most common reason for this to happen is faulty or worn-out spark plug coil packs, especially if it’s been a while since you had a tune-up.
How much does it cost to fix a cylinder 4 misfire?
How Much Does It Cost to Fix a Cylinder 4 Misfire?
| Diagnosis | Average DIY Repair Cost | Average Professional Repair Cost |
|---|---|---|
| Ignition coil replacement | $50-$80 | $100-$200 |
| Distributor or wire replacement | $40-$60 | $90-$125 |
| Valve adjustment | $25-$70 | $250-$350 |
| Fuel injector replacement | $150-$600 | $350-$900 |
What does error code P0304 with flashing check engine mean?
When the code P0304 is set in the Powertrain Computer, it means that the Misfire Monitor has detected more than a 2 percent variance in RPM between the firing of any two (or more) cylinders in the firing order.
Can you drive with P0304?
Driving with a misfiring cylinder is potentially dangerous. If you lose power while driving or a second or third cylinder goes out, this can cause you to get into a car accident, possibly injuring you and others around you.
Will tune up fix misfire?
A “tune-up” may help to resolve a misfire. A tune-up involves changing the spark plugs, ignition wires, distributor cap, and the rotor. It is a good place to start because it will eliminate some of the potential causes of a misfire if it does not already fix the issue completely.
How do I get rid of a misfire?
Zitat von Youtube: So what I'll do is just remove cylinder number two the coil pack place it here and then take this pack. And place it here and start the vehicle. Now.
How do I know if my spark plug is misfiring?
Symptoms of misfiring spark plugs include rough idling, uneven power when accelerating, and an increase in exhaust emissions.
What causes a coil pack to burn out?
The main cause of ignition coil burnout is the insulating material aging. For example, when the ignition coil high voltage can’t output smoothly, the current turbulence in coil will occur, causing the temperature to rise rapidly and accelerate the insulating material aging.