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 01-15-2011, 04:17 AM
JamesDean's Avatar
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,034
FYI: Fuel Pump Relay Pinout (Pre-MAS)

Thought someone might be able to benefit from this:

1) Green/Black - Speed Input - Pin ?
2) Green/Blue - Temperature Input - Pin TF
3) Blank
4) Violet/Green - Cold Start - 87V
5) Black/Red/Violet - Heated O2 Sensor - Pin 87H
6) Black/White - Kickdown - Pin 87K
7) Black/Red/White - Fuel Pumps - Pin 87
8) Red - Hot All Times +12 - Pin 30
9) Pink/Black - Ignition Switch - Pin 15
10) Green/Yellow - Tachometer Input - Pin TD
11) Brown - Ground - Pin 31
12) Violet/White - Starter Lockout Input - Pin ?

This pin out came from the w126 ETM for 1986+ Cars but should work on most cars with a fuel pump relay (not MAS).

If you are re-wiring one of these be sure to mind the 87 pin connectors as 87 and 87 do not carry the same current. I.E Pin 87H will not be able to engage something that should be connected to Pin 87

Hope this helps someone.

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
Reply With Quote
  #2  
Old 01-15-2011, 02:05 PM
mak mak is offline
mark
 
Join Date: Jul 2006
Location: Westfeld .
Posts: 687
pinouts

Thanks very informative.
how is the rev limiter activated here.
mak
__________________
mark
Reply With Quote
  #3  
Old 01-16-2011, 08:55 PM
JamesDean's Avatar
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,034
If you look at this diagram..the rev limiter appears to the one of the inputs to the coil side of the relay. The rpm input gets data from the EZL, which also feeds the tach, etc.

I believe the RPM signal voltage range is 6-12 volts. So in theory if you were to modify the signal so that it doesnt peak at 12...you could rev higher as the limiter wont cut the fuel pumps....
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
Reply With Quote
  #4  
Old 01-16-2011, 09:17 PM
Hit Man X's Avatar
I LOVE BRUNETTES
 
Join Date: Sep 2004
Location: FUNKYTOWN
Posts: 9,085
Thumbs up

Looks like that 560 is coming along.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
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 03:55 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page