rough idle-help?
 

Here's the deal, 03 a4 t.8q, idles rough when i'm at a standstill, runs smooth when i'm driving, got new plugs+coil packs, cleaned maf, and air filter, any ideas what else i could possibly check, anybody else have this problem???

RE: rough idle-help?
 

C'mon guys, somebody's gotta have an idea of what this prob. could be, pleeeeeease, it's drivin me nuts

RE: rough idle-help?
 

Clean your throttle body. Is your CEL on?

RE: rough idle-help?
 

vacuum leak... check the hoses coming off of intake manifold...

RE: rough idle-help?
 

Read codes and post them.

RE: rough idle-help?
 

Thanks for the response guys, no cel, and no i haven't cleaned the throttle body, for 1 didn't think of it & don't know how, any how to's? easy?

RE: rough idle-help?
 

oh, yeah, i'll check those vacuum hoses too, let ya knoe what happens

Any luck on fixing the rough idle issue?? My 03 b6 1.8 is experiencing the same problems and I have done everything under the sun to this car except check for vacuum leaks. What do I look for? Is there a good diy for this out there somewhere?? Thanks.

You adapt the throttle?

if so...

Fuel trims would be very useful information here...