I have a 1993 Audi 90 CS startes but runs rough and very sluggish when you are driving it . It acts like it is out of time. I don't beleive you can change the timeing on this car.

Asked by Jul 05, 2012 at 10:49 AM about the 1993 Audi 90 CS

Question type: Maintenance & Repair

3 Answers

13,195

Check your catalytic converter. The symptoms you describe are par for this problem. One way to get an idea of the condition of CAT. is to listen to your exhaust if it is making more of a hissing noise you most likely have blockage.

Just listed to the exhaust it is not making a hissing noise and when I put a dollar bill up to it it is not sucking it in. it has 2 cats (each side of v6 motor) not just 1. I was thinking it may be the cat but its not showing any other symptoms as in the hissing, blow back, or no to little exhaust coming of the out. I don't know much about the audis but motors all have the same basic concepts. Since I posted the first question I pulled the air filter and ran it and when I revved it up it got louder then normal motors do out of the air intake. Any other ideas.

13,195

Does it backfire at all?

Your Answer

90

Looking for a Used 90 in your area?

CarGurus has 3 nationwide 90 listings and the tools to find you a great deal.

ZIP:

Audi 90 Experts

  • #1
    wb6epp
    Reputation
    60
  • #2
    LouB
    Reputation
    40
  • #3
    Rowefast
    Reputation
    30
View All

Related Models For Sale

Used Audi 100
1 listing
Used Audi 4000
4 listings
Used Audi S4
46 Great Deals out of 1,653 listings starting at $3,995
Used Honda Civic
817 Great Deals out of 73,280 listings starting at $1,400
Used BMW 3 Series
1,157 Great Deals out of 33,173 listings starting at $1,000
Used BMW M3
48 Great Deals out of 1,780 listings starting at $5,995

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.