i have a stock 01 cl type s auto. the car drives fine for like 10 minutes then its starts missfiring and shaking. for 10 minutes then it will go away and come back go away and come back . the check engine light is on an dit said missfire cyl. number 1 3 5 6. i know i cant have 4 bad coils and also it runs perfect somtimes . im really confused on what it could be.

 

Start with spark plugs and work your way from there. oem plugs only though. This normally fixes it on our cars.