How do you know if a Mazda misfire is a coil pack?
Take your number four spark plug and swap it over to your number one cylinder. Now take your number four coil pack and put it on your number three cylinder. If the misfire jumps to the number one cylinder, you know it’s your plug. If it follows to number three, then we know it’s your coil pack.
What causes an ignition failure in a Mazda?
There are two components that could cause an ignition failure, assuming that your PCM is in good working order. These components would be your spark plugs and coil packs. It’s as simple as playing some musical chairs with them to see which one is the culprit.
Which is the correct code for a misfire?
The other type of misfire code is anything above P0300: P0301, P0302, etc. The last digit indicates the cylinder number that the misfire is occurring on. This means that there is a clear pattern for a misfire occurring on that specific cylinder. These codes are much nicer — and simplify diagnosis of your misfire without a doubt.
What should the pressure be at idle on a Mazda?
Pressure, at idle, should be somewhere in the range of 400+ PSI for this vehicle. If you’re seeing a PSI under 100, then the pump is not creating any pressure and it’s just flowing through from the in-tank pump. If you’re seeing a PSI in the 200s, then your pressure relief valve may need to be replaced.
Take your number four spark plug and swap it over to your number one cylinder. Now take your number four coil pack and put it on your number three cylinder. If the misfire jumps to the number one cylinder, you know it’s your plug. If it follows to number three, then we know it’s your coil pack.
There are two components that could cause an ignition failure, assuming that your PCM is in good working order. These components would be your spark plugs and coil packs. It’s as simple as playing some musical chairs with them to see which one is the culprit.
The other type of misfire code is anything above P0300: P0301, P0302, etc. The last digit indicates the cylinder number that the misfire is occurring on. This means that there is a clear pattern for a misfire occurring on that specific cylinder. These codes are much nicer — and simplify diagnosis of your misfire without a doubt.
Pressure, at idle, should be somewhere in the range of 400+ PSI for this vehicle. If you’re seeing a PSI under 100, then the pump is not creating any pressure and it’s just flowing through from the in-tank pump. If you’re seeing a PSI in the 200s, then your pressure relief valve may need to be replaced.