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Old 01-15-2007, 07:44 AM
Join Date: Jan 2007
Location: Rincon, Georgia
Posts: 7
Question 1991 190E 2.6 that will not start

Help needed,

Have a 1991 190E 2.6 that will not start. In the recent past there hav been a few times when I had to crank the car several times befor it would crank. Now it turns over but will not start.

I am getting good spark and fuel to the fuel distributor but I do not think any fuel is getting past this point. I removed a couple of the injector lines and no fuel is present.

Any suggestions?

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Old 01-15-2007, 11:06 AM
david s poole
Join Date: Mar 2005
Location: dallas
Posts: 1,822
check out the fuel pump relay behind the battery.there are two relays back there .the first is the a/c and the back one is the fuel pump.pull it out and use a pce of bare wire to join pins 30 and 87 and plug it back in.
David S Poole
European Performance
Dallas, TX

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
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Old 01-15-2007, 03:17 PM
Join Date: Jan 2007
Location: Rincon, Georgia
Posts: 7
There were four units behind the battery. Two were rather large so I don't believe they were fuel pump relays. The third one was a MAS unit, the fourth one was a small relay with a 10 amp fuse on top and corresponding numbers that you were talking about. Problem is there is a number 30, a number 30 A, and also a 87 E, and 87L. Which two should I run the wire between? Thanks for any help you can give.
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Old 01-20-2007, 05:48 PM
Join Date: Jan 2007
Location: Rincon, Georgia
Posts: 7
Thank you David Poole for your help you were right on the money. The MAS control unit was bad. Now all I need to do is find a control unit at a fair price.Again thanks

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