I would seriously doubt that all the coils are bad Lately i have been getting the random misfire code p0300 along with flashing cel The misfire would only be on one cylinder if a coil was bad
Cylinder 3 Misfire: Fixing the P0303 Error Code
I hadn't considered fake plugs but yes, that.
A few days ago the car threw the code p0303 which is for cylinder 3 misfire, i put a new plug in the car and it kept misfiring (yes it was gapped correctly)
Swapped coil packs and even used. Coil packs usually don’t intermittently fail, you either have a misfire all of the time or none of the time if it’s related to a coil pack If it misfired during idle it’s easier to diagnose, just unplug coil packs and see how. Injector grounding plate is the best i got
Fail proof way to find it is to follow the connectors from the injector/fuel rail and they should all connect to the same plate at some point Experiencing a misfiring mazda engine This guide breaks down common causes, diagnostic steps, and solutions to get your car running smoothly again. It may be the wires, if they can't get the zap to the plug, the cylinder will most likely misfire
If plugs, coils and wires are all good, maybe a problem with the cyclinder itself
Freektune is the leader in mazdaspeed tuning Having tuned over 300 individual mazdaspeeds around the world, we can deliver the highest quality of engine tuning for your vehicle In this article, we’ll look at the common reasons why your engine misfires under load, as well as what you need to do to fix the issue.
