Got 65000 miles on G Coupe & just got oil changed (synthetic) & new spark plugs (denso) about 3 weeks ago. No engine mods...
Was driving, light turned green, down shifted from 5th to 4th & car stalls out. Started it again, now Service Engine Soon light is on. Disconnected / reconnected battery for a reset. Great it worked! Yesterday sitting at the light, light green, go, car stalls again. Service Engine soon on again. What the hell is going on? Any suggestions, answers, or solutions.