Mercedes-Benz Mercedes Benz 190e 2.6 Autoart 118 Nurburgring 1984 Logo

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Richard Knipe
Richard Knipe Posted on Sep 17, 2017
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Set fuel /air mixture on 190E Overfueling at speed

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ivan whisker

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  • Mercedes-Benz Master 1,164 Answers
  • Posted on Dec 02, 2017
ivan whisker
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Joined: Jul 24, 2012
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Remove the air filter right on top ofvthe throttle body there isca hole for a small allen key hole thus idvthe air and fuel muxture screw but unless you have the exuipment to check the mixture you could cause danage to the engine

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jessee007

JP Services

  • 310 Answers
  • Posted on Jul 02, 2008

SOURCE: incorrect fuel and air mixture

this can be done by buying a plug in tested \programer from a local auto store

I’m happy to assist further over the phone at https://www.6ya.com/expert/james_1cb31da1bc8c6102

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Anonymous

  • 61 Answers
  • Posted on Jan 22, 2009

SOURCE: incomplete fuel combustion

You may a misfire in the ignition system (Spark)

Anonymous

  • 30 Answers
  • Posted on Jun 30, 2009

SOURCE: where is the air/fuel mixture scrue?

i'm not too familiar with dirtbikes but my experience with street bikes it has been on the underside of the carbs and if stock it is typically covered by a brass plug. this plug is just there to satisfy the epa you need to drill it out but be careful the screw is directly underneath the plug so as soon as you break thru pull back then use a screw to extract the plug. hope this is the answer you are looking for.

jonathanh356

Jonathan Hardin

  • 75 Answers
  • Posted on Sep 21, 2010

SOURCE: i have a 50 cc

The easiest way to adjust the air fuel is using a RPM capable multimeter. But, in a pinch, a good ear will do just fine. Adjust the screw inward until the rpms drop. Turn it VERY slowly until the rpms return upward. Once you finish, just work the screw back and forth to get it to the point the rpms change (however this is not necessary). Congradulations. You're finished.

Bill Boyd

  • 53816 Answers
  • Posted on Oct 03, 2015

SOURCE: Where to adjust Nissan sunny 130y carburetor idle speed n air fuel mixture

there will be screw with a spring under the head at the base of the carby
it is normally a small brass screw with a flat blade slot
turn it all the way in and then back it out around 2 turns
final tune is with the engine at operating temperature turn it in slowly until the rpms start to fall
slowly turn it back out until the rpms again start to fall
take notice of how many turns between in and out an final tune will be in 1/2 that number of turns
example
fully in then out 2 turns
turning it in and the rpms fall
turning it out and counting the number of turns gives you 1 1/2 turns till the rpms fall
turn it back in 3/4 turn

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How do I adjust the air fuel mixture in a 1984 Mercedes 380 se
Remove the air filter right on the top of the carb there should be a small hole if its the same as a 190e set up a long small allen key will fit down that hole and you can ajust fuel and air mixture
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engine timing could be off.for the mercedes benz inline 6 cylinder ignition timing 7 - 11 degrees before top top dead center with idle set speed 650- 700 rpm. make sure engine tuned up before adjusting ignition timing.replace spark plugs and wires,replace distributor cap and rotor.change fuel filter and air filter and clean fuel injectors.if engine still stall out have fuel pressure checked should be 77 - 80 psi. if your car have the EZL CONTROL UNIT ADJUSTS TIMING AUTOMATICALLY NO ADJUSTMENT IS POSSIBLE.
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Rough idle i have changed all coils and plugs
Hi
If your car runs rough or stops running while at a stop the main thing would be a vacuum hose leak.
What is happening is that the fuel/air mixture is off. At idle or lower speed there is more air than fuel being mixed because of the vacuum leak causing the engine to stall out.
That is why it runs fine as it warms up because the fuel mixture is richer, as the car warms up the fuel mixture decreases.
As you drive the car at normal speeds such as on the freeway, the fuel mixture increases bringing balance to the fuel/air mixture.
The vacuum leak in the hose is causing too much air to be added into the fuel/air mixture causing your engine to run lean while at an idle.
To locate the leak get a can of carb cleaner. Have someone help you keep the car running while you squirt the car cleaner around the different vacuum hoses. When you spray a section of hose and hear the engine smooth out or the RPMs increase, that area is your problem. Keep squirting the area until you are able to locate the hose with the leak.Remove the faulty hose .However if you take to a shop and they place it on the computer and tell you that the Oxygen sensor is faulty, tell them to check for a vacuum hose leak. The computer will of course report a faulty Oxygen sensor because the vacuum leak is causing the fuel/air mixture to be off.
Have you checked the EGR valve? It may be leaking, touch it with a wet finger at idle, if it is leaking it will be very hot, the cause is either carbon or back pressure transducer problem, another issue may be fuel pressure so check the pressure .
Let us know if you want to know something more else please accept the suggestion.
Thanks for contacting fixya.com
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A 93 190e 2.3 idles real high
poss ur idle air control valve is dirty or bad check thaty frist
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Apr 04, 2010 • 1993 Mercedes-Benz 190
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I hope this helps you.
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Jun 02, 2009 • 1994 Toyota Pickup
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Incomplete fuel combustion
You may a misfire in the ignition system (Spark)
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Sep 26, 2008 • 1990 Mercedes-Benz 190
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Mercedes benz 190e 1900year /air flow meter connections
AS far as i understand it your air flow meter only controles your idle, not your air/fuel mixture. The mixture is controled by the Air/fuel mixture body that sits immidiatly below your fuel distributor. it has a 'tower' that reaches up to a hole in your aircleaner so you can get to it with an allenkey. To set the mixture correct it needs the aircleaner on. that screw changes the pivot point of the arm that gets depressed by the large round disk visual if the aircleaner is of. This is not a throttle butterfly, it mechanically 'measures' the airflow by being sucket down and pushing a plunger upwards into the fuel distributer increasing the amount of petrol to the injectors. You say gas as a supplement... I assume you mean Hydrogen Fuelcell. Because if your trying to 'add' instead of replacing with LPG or Natural Gas you will have a problem as LPG for example needs to ignite earlier. For example if the petrol engine fires at 6 deg BTC on petrol, than converted for LPG it needs to fire at 16 deg BTC on their original plugs (newer plugs are available that allow for an acceptable setting suitable for both fuels but all i everseen when petrol was still present when switching to LPG is an 'engine bay' fire)... But assuming your talking Hydrogen fuel cells as a supplement to try and reduce your fuel consumtion than the element that could create a problem for you is the Lamda probe (Oxygen sensor) in your exhaust as it may think that your fuel mixture is to lean and tries to increase fuel through the cold start injector or the electronic pressure regulator on the fuel distributer. I hope this will help you somewhat.
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Aug 08, 2008 • 1989 Mercedes-Benz 190
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Mercedes Benz 190e 2.6 Autoart 118 Nurburgring 1984

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How do I adjust the air fuel mixture in a 1984 Mercedes 380 se

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