What does a pending misfire mean?
Misfires can be tricky to diagnose as there are lots of things that can cause misfires. Pending codes just means the computer saw it once but hasn’t seen it again on a subsequent drive cycle.
Is a cylinder misfire serious?
Driving with a misfiring cylinder is potentially dangerous. If you lose power while you are driving, or a second or third cylinder goes out, this can cause you to get into a car accident, potentially injuring you and others around you.
What would cause a misfire only at idle?
Many system malfunctions can cause misfires or rough idling. Ignition system components, including spark plugs, plug wires, ignition coils and ignition timing are culprits as are lean air/fuel mixtures and mechanical issues within the engine.
What does it mean when cylinder 4 misfire?
One of the symptoms of a faulty cylinder is misfiring. 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.
What is the error code for a misfire?
Ignition system problems—for instance, a worn spark plug — can trigger error code P0302. Code P0302 is part of a series of misfire DTCs that range from P0300 to P0012.
Why is there a p0302 code on my cylinder 2?
It’s worth noting that, if other misfire codes accompany a P0302, there will likely be more than one potential cause. Code P0302 by itself is a good indicator that the problem is with cylinder 2 only. On the other hand, multiple misfire codes can indicate an issue, such as a vacuum leak or low fuel pressure, that affects various cylinders.
What causes cylinder 5 on a Dodge Charger to misfire?
The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 5 into the exhaust. Mileage may suffer as well when your Charger has P0305 as well. P0305 is a cylinder specific misfire code, which means that Cylinder 5 is misfiring and causing it.