hello i am having trouble with my audi a4 quattro 3.0 sport 2002 .The problem is i have had the garage change the spark plugs all the coil packs ,all the vacum hoses and it is still holding back the car is giving a missfire with this code,
4,5,6 cyilinder passenger side .
the garage has said it could be a cat problem or lamba sensor but then they said it could be the cambelt ,but the thing is they have quoted me 800 pounds for the cat ,and lamba sensor 150 pounds each as it has 4 but only two need to be changed on the passenger side if thats the problem any ideas anyone???????????
4,5,6 cyilinder passenger side .
the garage has said it could be a cat problem or lamba sensor but then they said it could be the cambelt ,but the thing is they have quoted me 800 pounds for the cat ,and lamba sensor 150 pounds each as it has 4 but only two need to be changed on the passenger side if thats the problem any ideas anyone???????????
