1993 volkswagen cabriolet. the car starts missing terribly after warm up

55

Asked by Aug 31, 2007 at 11:54 AM about the 1993 Volkswagen Cabriolet

Question type: Maintenance & Repair

car starts missing terribly after about 10 minutes of driving (after warmup) it seems to build up alot of pressure in the gas tank-black smoke coming from exaust(running rich) If I hold accelerater to the floor it will quit missing, but starts missing immediatly upon normal driving. Could this be the fuel pumps? tried running without gas cap-made no difference-also took to garage, could'nt hook up to their machine, he unhooked regulator, still no difference.
before this happened the car would not start well when cold, but now the car starts right up anytime.

2 Answers

14,965

Hi jelsings, I would connect a fuel pressure guage to your vehicle and find out if it has enough/too mcuh pressure and adjust as necessary. You could also have a vacuum leak or bad O2 sensor which would cause the lean mixture. Hope this helps!

1,525

I know this is an old question, but one thing that has to be checked on these older VWs is the ground strap for the engine ecu. It grounds against a stud near the valve cover, and the car will run full rich if that ground strap is broken or disconnected.

Your Answer

Volkswagen Cabriolet Experts

  • #1
    Reelin68
    Reputation
    270
  • #2
    Scott Sr.
    Reputation
    230
  • #3
    tenspeed
    Reputation
    220
View All

Related Models For Sale

Used Volkswagen Golf
96 Great Deals out of 4,894 listings starting at $2,500
Used Volkswagen GTI
120 Great Deals out of 8,203 listings starting at $2,100
Used Volkswagen Jetta
582 Great Deals out of 33,836 listings starting at $1,295
Used Jeep Wrangler
322 Great Deals out of 17,048 listings starting at $2,999

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.