What causes random misfires?
A random misfire code usually means the air/fuel mixture is running lean. But the cause might be anything from a hard-to-find vacuum leak to dirty fuel injectors, low fuel pressure, a weak ignition coil, bad plug wires, or compression problems.
Why does my truck misfire sometimes?
An engine misfires. Engine misfires can be caused by a list of faults, but there are a few suspects that occur more than others. The primary villains are simple – spark or fuel – usually manifesting in spark plugs, plug wires, the coil(s) or the fuel-delivery system.
Will a bad o2 sensor cause a random misfire?
If an oxygen sensor or mass airflow sensor is failing, it could give incorrect data to your engine’s computer, causing the misfire. When a vacuum line is broken, it can cause a fuel-injected motor to misfire. Replacing a vacuum line that’s gone bad can potentially resolve the misfire.
What is the misfire code on a Toyota Tacoma?
Toyota Tacoma P0304 Definition P0304 is a cylinder specific misfire code, which means that Cylinder 4 is misfiring and causing the code.
What does cylinder 4 on a Toyota Tacoma mean?
The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 4 into the exhaust. Mileage may suffer as well when your Tacoma has P0304 as well. P0304 is a cylinder specific misfire code, which means that Cylinder 4 is misfiring and causing the code.
What does p0304 stand for on a Toyota Tacoma?
P0304 is a relatively common trouble code with any vehicle, that includes the Toyota Tacoma. It’s and OBD2 code and stands for: P0304: Misfire Detected → Cylinder 4.
What does a cylinder 4 misfire code mean?
P0304 is a cylinder specific misfire code, which means that Cylinder 4 is misfiring and causing the code. An important thing to understand when finding the location of Cylinder 4 is that it’s going to be the 4’th cylinder in the firing order of the vehicle, and not the 4’th cylinder that you might see when looking at the engine.