Question about 1994 Volkswagen Jetta

1 Answer

It is running rich. How do I adjust the carb?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 14 Answers

You don't. First check air filter, if clogged, replace. Next, is your car throwing a trouble code? Try cleaning MAF sensor with carb cleaner (that's between air cleaner and throtle body), next, replace bank one of the oxygen sensor. I would start there. The problem running rich is a little generic, and the above are easy fixes. If this doesn't fix it, come back and we will move on to the next possible problem.

Posted on Apr 27, 2013


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What does running rich mean? And is it expensive to fix?

Running rich is a term to describe the fuel to air ratio as being to " rich" with fuel and simply means you need more air.
Usually done by adjusting the carb.

Jan 02, 2016 | Cars & Trucks

1 Answer

I have a chevy 350 with two hollie carbs .how do i adjust the fuel in the fuel and air to make it run so i can ajusted it after i get it running

Well the correct way of doing it would be with a 4 gas analyzer but without that you would have to use a vac gauge.
Once you get it running and have the timing set, the carbs would be adjusted lean until the RPM and vac drops, then go rich a turn or so on the adjusting screws. Most Holley carbs start at one or two turns out.

Sep 28, 2012 | Cars & Trucks

1 Answer

Carb is running rich and dont want to rebuild the carb 4bbl dynaflow

you should be able to adjust the idle screw a quarter turn at a time until it runs

Mar 27, 2012 | Cars & Trucks

2 Answers

1987 threequrter ton chevy 350 moter with quadura jet carb running rich an smokeing

either the float is sticking, when it is running use the back of a screwdriver and rap the bowl and see if this helps, or the jets need adjusted, start with the right one first, turn in untill the motor starts to lag then open it up untill the rpm stops climbing, do the same with the left one also, see if this helps. let me know.

Mar 13, 2011 | 1986 Chevrolet Chevy

1 Answer

Truck running to rich, what adjustment on carb do i do.

downdraught or sidedraught ,if downdraught then you will need a new main jet ,have you checked the air filter is clean ?'

Mar 24, 2010 | 1983 Chevrolet K1500

1 Answer

1979 sierra grande runs too righ even after adjusting carb

You may have an internal carb gasket leak or your floats may be adjusted too high.After you run the truck look into the carb to see if there is gas still dripping into the carb bore.Also after running with engine on remove the front fuel level check screw. (have lots of rags under to catch fuel) Fuel level should be right below hole.If it is spilling out it is too high.Floats need to be adjusted up for fuel level to go down.

Oct 27, 2009 | 1989 GMC Sierra

1 Answer

My 351 is running rich

use the air and gas flow adjustments on the side of the carburator to adjust the rich/lean flow of gas. there is a srew on each side of the carb to adjust one is for air the other for fuel. the one on the driversside is for the fuel and the one on the passenger side is for air. you have to turn them slowly til you get the desired results

Feb 17, 2009 | 1984 Ford F 250

1 Answer

How to adjust (lean) the carb 1983 branco 351w

There are only sealed adjustments for idle mixture usually, is it running too rich at all times? might need the carb rebuilt

Jul 09, 2008 | 1983 Ford Bronco

1 Answer

Gmc vandura 1996, 3500 running rich

There could be all kinds of reasons your vehicle runs rich. It should be fuel injected not carborated. It could have a bad injector, bad air filter, o2 sensors etc. Have it scaned for the reason.

May 18, 2008 | 1987 GMC VanDura

Not finding what you are looking for?
1994 Volkswagen Jetta Logo

86 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers


Level 3 Expert

75842 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8215 Answers

Are you a Volkswagen Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides