Common cause is valve cover gaskets leaking oil into the spark plug holes. Remove plugs & check for oil residue around the plug & wire. You may find problem one just one bank or both. Removing plugs will drain the oil temporarily but it most likely will continue until valve cover gaskets are replace,
Trouble code P0303 means: Cylinder 3 Misfire Detected
If the check engine light is blinking , an engine cylinder misfire has been detected
Yes It Can.
will a 1997 Mazda 626 transmission or engine interchange with a 1999-2002 Mazda 626 transmission or engine
how many belts are in mazda 626
It means Cylinder misfire. Stop driving this car until you can have this repaired.
A flashing check engine light is an indication of a misfire. See related question below for more information.
could be fuel starvation
how do i troubleshoot my 1998 Mazda 626 distributerless no spark
Can a Mazda 626 engine fit in a Mazda MPV mini van?
all I want to know is what kind of refrigerant for 2002 Mazda 626
How do I get a replacement key for 2000 mazda 626?