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Peter Milnes · Sep 13th, 2005, 01:16

Hi Russell, the relay you refer to should be the Radio Suppression relay and is the power feed relay for the fuel injectors. Wiring as follows:- Red wire goes to pin 4, Black wire goes to pin 1, Green(Blue?)/Yellow wire goes to pin 2 and Green/Red goes to pin 3. Same colours are used whether LH 2.4 or Rex/Regina or Motronic (760) sytem is used. Blue/Yellow is the colour for the pin 2 wire according to the Green book.

All the best, Peter.

Sep 13th, 2005, 01:16	#4
Peter Milnes Premier Member Last Online: Apr 10th, 2014 00:01 Join Date: Feb 2002 Location: Tonyrefail	RE: 1990 740 GL Auxillery Relay Wires Hi Russell, the relay you refer to should be the Radio Suppression relay and is the power feed relay for the fuel injectors. Wiring as follows:- Red wire goes to pin 4, Black wire goes to pin 1, Green(Blue?)/Yellow wire goes to pin 2 and Green/Red goes to pin 3. Same colours are used whether LH 2.4 or Rex/Regina or Motronic (760) sytem is used. Blue/Yellow is the colour for the pin 2 wire according to the Green book. All the best, Peter.