1991 Audi 80 high feul comsuption

1991 AUDI 80
267,879 MILES • 4 CYL • 2WD • MANUAL
Avatar
ENTIST
  • MEMBER
  • 1 POST
i have audi 80 model my problem start after I change set of ringes of the cyl , comsuption of gasoline increse with formation of black smoke it comsupt about ( 1 LT per 8 Km ). i open the Carburetor and clean it but with out benefit.
please for your advice.
Sep 5, 2008 at 8:47 PM
Advertisement
Avatar
KHLOW2008
  • ✓Experienced Mechanic
  • 41,814 POSTS
Hi entist,

Sooty spark plugs means too much fuel is getting into the cylinders or the combustion is incomplete.

1. Is the automatic choke is opening fully?
2. Is the valve timing correct?
3. Are there any vacumn leakages?
4. Is the igniton timing correct?
Sep 6, 2008 at 2:34 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.