I own a 2004 crossfrie with 50k miles. Sometimes when I stop at a red light or stop sign the car will idle to 300-500rpm, and it will shake the car. Other then this is has no problems no warning lights and no trouble code when I hook my obd II reader to which is expected because these no lights. Anyone else have this issue or know what I should do...besides take it to a dealer which will be glad to take my money.