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  #1  
Old 02-07-2006, 11:00 PM
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Join Date: Jan 2003
Location: Sydney, Australia
Posts: 627
Unusual starting with full tank - 190E 2.3

Recently I have noticed my 190E 2.3 behaves differently when starting from cold with a full tank of fuel. Usually, starts see the engine crank for maybe one or two seconds and then fire and idle normally. When the tank is full it now fires almost the instant the starter engages, runs for maybe less than a second then stalls. A second cranking attempt results in a normal start. Once the level in the fuel tank drops a little it reverts to normal starting behaviour on the first attempt.

I am wondering if I have a leaky injector, cold start valve or fuel distributor that is allowing a small amount of fuel to accumulate in the inlet manifold or an inlet port when the fuel level in the tank is above the level of the fuel system at the engine? This fuel could allow the engine to fire immediately when cranking before fuel reaches the inlet ports in the correct manner.

The car is running perfectly otherwise with both good performance and normal fuel consumption. It is a 1990 model with KE-Jetronic showing a little over 230,000km.

Any ideas or has anyone seen this problem before?

Thanks,
Greg
__________________
107.023: 350SLC, 3-speed auto, icon gold, parchment MBtex (sold 2012 after 29 years ownership).
107.026: 500SLC, 4-speed auto, thistle green, green velour.
124.090: 300TE, 4-speed auto, arctic white, cream-beige MBtex.
201.028: 190E 2.3 Sportline, 5-speed manual, arctic white, blue leather.
201.028: 190E 2.3, 4-speed auto, blue-black, grey MBtex.
201.034: 190E 2.3-16, 5-speed manual, blue-black, black leather.
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  #2  
Old 02-08-2006, 02:30 AM
Senior Member
 
Join Date: Mar 2001
Location: Accokeek, MD
Posts: 683
The solution to your problem is poverty. The upside will be never having enough money to fill the tank along with experiencing the thrills of just having made it to the next gas station.

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Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra

Last edited by ejsharp; 02-08-2006 at 02:37 AM.
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  #3  
Old 02-14-2006, 03:47 AM
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Join Date: Jan 2003
Location: Sydney, Australia
Posts: 627
Earl,

Hopefully I won't have to use poverty as a solution! By doing all my own work (sometimes with the assistance of good advice from this forum) I have so far managed to keep these cars in good shape with minimal expenditure.

Anyone got any ideas on this one? Not that it is a big problem, really just a very slight inconvenience that many probably would not even notice. It's just that I'm a bit fussy and am not happy unless I know that things are working as they should. Obviously something here is not quite right. Whilst I may be able to find it the hard way, it could be tricky given that it is such a subtle problem that only occurs on a cold start with a full tank. I was hoping someone may be familiar with this.

Thanks,
Greg
__________________
107.023: 350SLC, 3-speed auto, icon gold, parchment MBtex (sold 2012 after 29 years ownership).
107.026: 500SLC, 4-speed auto, thistle green, green velour.
124.090: 300TE, 4-speed auto, arctic white, cream-beige MBtex.
201.028: 190E 2.3 Sportline, 5-speed manual, arctic white, blue leather.
201.028: 190E 2.3, 4-speed auto, blue-black, grey MBtex.
201.034: 190E 2.3-16, 5-speed manual, blue-black, black leather.
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