Wiring Harness Fuel Injection schematic needed

wsmartin1961 · 02-11-2011, 05:48 PM

In the process of rebuilding wiring harness for my 1993 300SE 3.2L, I accidentally cut the wires to the connector that hooks to the magnet for camshaft adjustment. The entire wiring harness was bad throughout as all the insulation was dried and cracking. The male (2) prongs are on the magnet and the female connector has the numbers 1 and 2 on it and eventually hooks into the large 36 pin connector pictured. Can anyone tell me where pins 1 and 2 on small connector attach to on the 36 pin connector (what # pins?). The pins are labeled 1 through 36 on the large connector. See attached pictures

Thanks in advance William

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vsandvs · 03-07-2011, 12:18 AM

Hey William,

I rebuild those harnesses but I don't have any diagrams of them. I will actually document one when new harness will come in for rebuild.

From what I know cam advancer wires go somewhere in the center of main connector. Sensors usually go to the end of main plug, injectors in the beginning, injector positives and cam advancer go in the middle somewhere. polarity is not important as cam advancer is electromagnet and will pull advancer valve in when current is applied. Valve is not polarized.

When I rebuild harnesses I cut one wire at the time and replace it with new one. You can replace all other wires and do cam advancer wires last so they will go to last available terminals on main connector.

Cheers,

Victor

wsmartin1961 · 03-07-2011, 12:51 AM

Hi Victor,

Thanks for the reply. I got a schematic for the engine wiring and figured it out. The car runs like a champ again

William

michobebe · 01-23-2012, 05:49 PM

Hey, does this apply to 96+ models? are they the same technology/magnets

cool_lagoon · 01-24-2012, 04:31 PM

Quote:

Originally Posted by wsmartin1961

Hi Victor,

Thanks for the reply. I got a schematic for the engine wiring and figured it out. The car runs like a champ again

William

can you share the schematic diagram?

lyubomusic · 11-28-2012, 06:37 PM

Quote:

Originally Posted by wsmartin1961

Hi Victor,

Thanks for the reply. I got a schematic for the engine wiring and figured it out. The car runs like a champ again

William

Hi,can you tell me from where you got the Wiring Harness Fuel Injection schematic. Thanks

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03-07-2011, 12:18 AM	#2
vsandvs Newbie 1999 Mercedes-Benz M-Class Join Date: Sep 2009 Location: Brooklyn, NY Posts: 11 Drives: 1999 ML430; 1994 S500	Hey William, I rebuild those harnesses but I don't have any diagrams of them. I will actually document one when new harness will come in for rebuild. From what I know cam advancer wires go somewhere in the center of main connector. Sensors usually go to the end of main plug, injectors in the beginning, injector positives and cam advancer go in the middle somewhere. polarity is not important as cam advancer is electromagnet and will pull advancer valve in when current is applied. Valve is not polarized. When I rebuild harnesses I cut one wire at the time and replace it with new one. You can replace all other wires and do cam advancer wires last so they will go to last available terminals on main connector. Cheers, Victor

03-07-2011, 12:51 AM	#3
wsmartin1961 Newbie Garage is empty, add now Join Date: Feb 2011 Posts: 2 Drives: 1993 Mercedes Benz 300SE	Hi Victor, Thanks for the reply. I got a schematic for the engine wiring and figured it out. The car runs like a champ again William

01-23-2012, 05:49 PM	#4
michobebe Junior Member Garage is empty, add now Join Date: May 2009 Posts: 28 Drives: W220 S500 2003 4Matic & W140 1998 S600 V12	Hey, does this apply to 96+ models? are they the same technology/magnets

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11-28-2012, 06:37 PM