I have a 2003 Audi A4 3.0L w/150k that has several CELs.P0102, P0300, P0301, P0302, P0304, P0305, P0306, P0171, P0172, P0174, & P0175. I could tell it was misfiring and was told by a mechanic the spark plugs and coil packs needed replaced. Before I had a chance to do that I was driving it and there was a huge loss in power when I stepped on the gas. Very sluggish. I limped it home and parked it and now it will not start. Keeps trying to turn over, but no start. I changed the spark plugs and coil packs and still wont start.

Any one have any suggestions that may help? Could the MAF cause this?

 

Clear all your codes, and then try again and see what comes back. Those will be what needs troubleshooting.