I went to autozone, he gave me three codes. They were
1. Mifire in # 5 cylander
2. EGR Valve
3. Mass Air Flow Sensor

So is the # 5 the one third in from the front of the car? I took off my old ignition coils because i got new ones and forgot which ones went where. And I don't know why it would be misfiring, i got new ignition coils, new wires, and new spark plugs less than 2 months ago.

What is the ERG Valvue? Where is it and how much is that going to run me?

And I think i will replace the Mass Air Flow Sensor, because I think I know where it is. How expensive are they? Thanks

Jason