2010 Impreza 2.5i Premium no turbo
90k miles
New NGK Spark plugs
New NGK Ignition Coil
So I replaced these just a few months ago and it was fine. I normally only drive about 15-30 minutes a day one way so I never noticed this issue till today. I drove it for about an hour then went to a drive-thru and started noticing quick split second stalling 5-6 times before finally dying when I drove away after getting my meal. I was able to get the car off the road and let it rest for about 10 minutes before starting it again and this time it was fine. The first few times this happened was before i replaced the oem ignition coil and plugs. Is this a frequent problem with ignition coils getting too hot? Possible faulty NGK ignition coil? What else could it be?
Well it could be lots of things injectors, ignition system, etc. Now what you want to do is hook up a scan tool when it acts up, look at the data or pay a mechanic with this fancy scan tool that records the data. They can be reviewed later. It would show where the problem lies. For example, if it was an ignition coil it would show the misfires on only that particular cylinder
