My wife's has a 95 Mystique that has 72,000. miles and last week the cel came on and it stays on for a period of time,5 to 10 mins.I pulled the codes on Mon.koef and mem. showed a 111,thats good,koer I got 332,egr valve.and 225 knock senser,as far as I can see there is no knock senser on the 2.5 V6 so why the code