Fuel/air mixture too rich, engine misfire, or damage.
No it will not cause misfire.
Contaminated fuel could cause a misfire.
It could.
I'm not a mechanic / technician but I BELIEVE if the fuel injector is restricted so that the proper air - fuel mixture is not getting to an engine cylinder , that an engine cylinder misfire can occur ( that is only one of the causes of an engine cylinder misfire )
A partially clogged converter will cause this. Also an overly rich fuel/air mixture or a cylinder misfire is a cause.
Anything that could cause a cylinder misfire can cause the check engine light to flash. A restricted fuel filter is one.Anything that could cause a cylinder misfire can cause the check engine light to flash. A restricted fuel filter is one.
Misfire is caused when a cylinder doesn't ignite its fuel mixture. Suspect a bad plug, coil, or wire. This will not be caused by a mass airflow sensor, that can cause a rough idle or bad fuel economy, but will not cause an individual cylinder to misfire. Driving with a continuous misfire condition will eventually destroy your catalytic converter. If your check engine light is flashing you are doing serious damage to your cat converter.
I'm not a mechanic / technician but it might be the spark plug , spark plug wire , not the proper air / fuel mixture to that engine cylinder , and there are probably other causes
Yes they can, if one or more are either stuck open or not working at all it will cause a misfire.
can low grade gas cause a misfire, I don't think so but, Contaminated (water, etc) gasoline could. Flow restriction (plugged fuel filter, plugged fuel injector) could. Incorrect fuel pressure could.
005 gap is pretty minimal. While the engine may not run perfect and fuel economy may be affected, it is not enof of a difference to cause sputter and misfire. A .005 gap difference in what we need to know.