I picked up my car this evening, runs great. I misquoted in my last reply, the bill was $480 + tax, for an amount of $560 CND. I'm looking at my bill and I have a question. Says here they repaired (replaced) lines for EGR and Supply Vaccum. I looked under the hood when I parked the car and I saw the lines they replaced right away, thing is, I never remember having lines there as long as I've owned the car. My question is what are they for... what does the EGR do and what is the supply vaccum for? What happens when they are not connected?

Cheers for now
EADG