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  #1  
Old 01-27-2007, 03:16 AM
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Question 560SEL 1989 won't start

Dear all,
recently I changed the black E.H.A. Valve that is mounted on the fuel distributor (Bosch# 3.437.010.040) with a brand new original one. After that the car run smoothly with no problems at all and no black smoke. I noticed that when the car is a bit cold it won't start. I was too afraid of the EZL unit but thanks god it was fine. The car will run only if I disconnected the black E.H.A. Bosch Valve wires. I did all what I thing it's possible cause including changing the ABS/ASR computer.

What shall I do? Thank you in advanced : ))..

The part is here: http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1VE10RDJ21VH18GGU2&year=1989&make=MB&model=560-SEL-001&category=C&part=E.H.A.+Valve

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380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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  #2  
Old 01-31-2007, 02:53 AM
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Exclamation

up...
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Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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  #3  
Old 01-31-2007, 01:24 PM
david s poole
 
Join Date: Mar 2005
Location: dallas
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why did you change the eha?
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David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
http://www.w108.org/gallery/albums/A...1159.thumb.jpg
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  #4  
Old 01-31-2007, 07:58 PM
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Won't Start

Did the wires come out of the plastic connector when you were working on the EHA? Perhaps the wires are reversed thus leaning the mixture when cold.
After the EHA replacement did you reset the mixture? Maybe it's too lean.
Do you have the equipment to check Lambda?
Mike
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  #5  
Old 02-01-2007, 10:34 AM
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Mr. david s poole,
I changed it because the old one is causing a black smoke and was too old, in addition, many technicals recommended me to change it.

Mr. Mike Freeman,
No, the wires are still in the plastic connector as its original shape.

I changed the passenger side computer but that didn't solve the problem. It's Euro car.
__________________
Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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  #6  
Old 02-01-2007, 12:05 PM
david s poole
 
Join Date: Mar 2005
Location: dallas
Posts: 1,822
there are two diff ones that look exactly the same except for the number on the top.one ends in 007 the other in 003.which one do you have?
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David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
http://www.w108.org/gallery/albums/A...1159.thumb.jpg
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  #7  
Old 02-01-2007, 05:16 PM
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Quote:
Originally Posted by david s poole View Post
there are two diff ones that look exactly the same except for the number on the top.one ends in 007 the other in 003.which one do you have?
I'll check it and see, which one it must be?
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Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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  #8  
Old 02-02-2007, 11:28 AM
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Mr. david s poole,
I checked the top number and it was ending with 009. I'm sure it's 009 NOT 006.
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Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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  #9  
Old 02-04-2007, 10:05 AM
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Angry

What shall I do next?
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Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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  #10  
Old 02-04-2007, 12:12 PM
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Quote:
Originally Posted by bribenz View Post
did you try to start it with the old eha attatched again ?
It will start normally but with black smoke.
__________________
Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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  #11  
Old 02-04-2007, 01:44 PM
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Have you checked the Ma reading at the EHA? look up some of my entries on the EHA. I have just completed doing one on a 420sel, though Dave will know a hole lot more than I about your car,my notes may be of some help to you.JNT
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  #12  
Old 02-05-2007, 09:49 AM
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Thanks to all of you
Problem solved by disconnecting O2 sensor connectors. Now my last question is that what will happen if I did not got a new O2 sensor and left it disconnected for ever?
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Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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  #13  
Old 02-05-2007, 03:52 PM
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Thumbs down No!!!

No!!! The problem hasn't been solved I thought so but it didn't. Please tell me what to do. Could it be the cold starting valve?
__________________
Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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  #14  
Old 02-05-2007, 05:18 PM
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Won't start

Respectfully; You can't just change parts and expect the fuel management system to be dialed in ! After replacing the EHA you will have to adjust the mixture to achieve proper fuel / air ratio. Mike
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  #15  
Old 02-06-2007, 01:36 AM
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Quote:
Originally Posted by Mike Freeman View Post
Respectfully; You can't just change parts and expect the fuel management system to be dialed in ! After replacing the EHA you will have to adjust the mixture to achieve proper fuel / air ratio. Mike
Of course I did adjust the mixture.

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Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
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