M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Swaps, Turbos, Buildups => Topic started by: 7yatna on December 19, 2012, 07:52:17 PM

Title: Cranking but not starting !
Post by: 7yatna on December 19, 2012, 07:52:17 PM

hey guys ,

i need your help asap

i swaped an engine m42 from 94 e36 !

to my 90 e30 chassis !

tried to start but no good

found out that

the three relays are cut off the engine harness

i could manage the fuel pump relay

but i need your help to figure out the other 2

dme main relay and o2 sensor relay !

i need wiring and colors ! and location please !

thanks in advance !

Title: Cranking but not starting !
Post by: DesktopDave on December 19, 2012, 08:40:56 PM

They're located on the firewall, under a plastic cover.  You'll need to connect a positive wire off the battery block.  I've attached a clickable thumbnail below, colors are listed on that diagram.  This is a page from the electrical troubleshooting manual (ETM) - check it out.  You can download it from here (http://wedophones.com/Manuals/BMW/1992%20BMW%20318ic%20Electrical%20Troubleshooting%20Manual.pdf).

(http://i729.photobucket.com/albums/ww299/desktopdave/th_Relaywiringcolors_zps0f2efd82.jpg) (http://s729.beta.photobucket.com/user/desktopdave/media/Relaywiringcolors_zps0f2efd82.jpg.html)

Title: Cranking but not starting !
Post by: 7yatna on December 19, 2012, 09:11:36 PM

thanks alot man this what am looking for !

thanks

tomorrow i`ll post what came up !

thanks again