Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-26-2007, 03:20 PM
shammy
 
Join Date: Jan 2007
Location: Rincon, Georgia
Posts: 7
What To Do Next

MY 1991 190E 2.6 HAS GOT ME AT A LOSS. A COUPLE OF WEEKS AGO IT STOPS RUNNING. AFTER GETTING SOME ADVICE FROM ANOTHER FORUM MEMBER AND RUNNING A FEW SIMPLE TESTS WE FIGURE OUT THAT MY MAS CONTROL UNIT IS BAD(FUEL PUMP RELAY). I PURCHASE A UNIT AND INSTALL IT AND... STILL WILL NOT START. COULD ANYONE SHED A LITTLE LIGHT AS TO THE NEXT STEP I SHOULD TAKE? ALSO IS THERE ANY WAY TO TEST THE NEW UNIT(MAS CONTROL UNIT) TO SEE IF IT IS BAD? THANKS IN ADVANCE.

Reply With Quote
  #2  
Old 01-27-2007, 01:26 PM
G-Benz's Avatar
Razorback Soccer Dad
 
Join Date: Apr 2001
Location: Dallas/Fort-Worth
Posts: 5,711
You mentioned MAS and the fuel pump relay in parentheses...unless I'm absolutely incorrect or you have a pretty exotic MAS unit, the fuel pump relay is a separate component having nothing to do with the MAS.

The MAS may affect performance and possibly set off a CE light, but wouldn't contribute to the no-start issue.
__________________
2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car
Reply With Quote
  #3  
Old 01-28-2007, 07:30 AM
shammy
 
Join Date: Jan 2007
Location: Rincon, Georgia
Posts: 7
The Mas Control Unit (89-93models) Incorperates The Fuel Pump Relay Or So I Have Been Told. I Think My Fuel Pump Is Ok . I Can Here The Pump Ingage When I Turn The Key On. But That May Just Be It Priming The System And Then The Mas Control Unit Takes Over , I Don"t Know. I Have Not Been Able To Crank The Car Up In A Month Or So With The Exception Of Three Timmes. Twice When I Was Trying To Figure Out What Might Be Wrong And It Just Turned Over And Once When I Jumped The Fuel Pump Relay With A Piece Of Wire Between The Fuel Pump Relay Plugs. All Three Times It Went Back To Not Starting Again.

Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 04:25 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page