1.8t 225 hp 2001 with a manual.

I previously posted that my car was acting like it was running on 3 cylinders.

here's what I have done;

most expensive can of fuel injector cleaner I could find.
no check engine lights
cleaned MAF
new spark plugs
checked coil packs - all cylinders are firing at idle
had checker auto run a scan - nothing
no audi dealer in town and my VW dealer won't touch it
checked for vacume leaks but can't seem to hear or see any - who knows

car just runs rough. at idle, on the road, clutch in or out doesn't make a difference. the problem came quickly, I noticed it on my 3 mile drive to work. rev it up and it's just not smooth, almost afraid to drive it. idles great, doesn't seem to have the power.

any other ideas? the dealer is 360 miles away and I am starting to panic!

Peter Schmid

 

running rough w/ no CEL...?

the 1.8t is notorious for vacuum leaks as well as bad coils...

 

Vaccum leak somewhere.

 

my money is on a coil.. it would have to be a big vaccumme leak to make it run that bad... you would hear it whistle? i replace coils everyday.. that is what i would guess if I had to?