ME-SFI fuel pump actuation function - GF07.61-P-3012F

ENGINE 104.941 /943 /944 /991 /994as of 1.8.96 

ENGINE 104.995 

with CODE (494a) USA version 

with CODE (807) Model year 1997 

with CODE (808) Model year 1998 

with CODE (498) as of Model year 97 Japanese version 

ENGINE 111.921 /942 as of 1.9.98, 

111.943, 

111.944 as of 1.8.96, 

111.946 as of 1.6.98, 

111.947/973, 

111.975 as of 1.8.96 

ENGINE 111.945 

in MODEL 208.335/435 as of 1.6.98, 

202.020/080 as of 1.9.98 

ENGINE 111.974 

with CODE (494a) USA version 

with CODE (807) Model year 1997 

with CODE (808) Model year 1998 

ENGINE 112.910 /911 /912 /913 /914 /916 /917 /920 /921 /922 /923 /940 /941 /942 /943 /944 /946 /947 /949 /953 /954 /955 /970 /972 /973 /975 

ENGINE 113.940 /941 /942 /943 /948 /960 /961 /963 /965 /966 /967 /968 /969 

ENGINE 119.980 /981 /982 /985 

ENGINE 120.982/983 

ENGINE 137.970 

Shown on Engine 119 

Task 

Actuating fuel pump at

• Ignition ON  : Actuate fuel pump for about 1 s (audible) as a full running protection. An engine start must be completed, however, before repeated actuation of the fuel pump.
• when starting engine via the first signals of the crankshaft position sensor (L5/5 on Engine 120)
• When engine running by means of TN engine speed signal.

Design/function 

The fuel is actuated through the fuel pump relay.

The fuel pump relay is actuated through a ground signal from the ME control unit. When the contact is closed, the fuel pump (M3) is linked through circuit 87 to circuit 30 (B+). The voltage supply is fused to the fuel pump.

On engine 120, the fuel pump is actuated by the right ME-SFI control unit(N3/12).

If the fuel pump does not run, check the voltage supply of the ME control unit and the fuse of the fuel pump.

Check electric connection at fuel pump for corrosion.

	Fuel pump location/task/design/function		GF47.20-P-4003L
	Fuel delivery module, location/task/design/ function	Model 163	GF47.20-P-4101GH
		Model 203, 209, 211	GF47.20-P-4101P
	Engine speed signal function		GF07.61-P-3017F
	Crankshaft position sensor, location/task/ design/function		GF07.04-P-4116F
	Fuel pump relay, location/task/design/function		GF54.15-P-4105L
	Relay module position / task / design / function	Model 210 up to 2/97 Model 170	GF54.10-P-4033K
	Motor electronics control unit, location/task/ design/function		GF07.61-P-5000F
	Voltage supply of ME-SFI control unit function		GF07.61-P-5001F
	Electronic ignition switch control unit, location/ task/design/function	Model 202 as of 6/97, 208, 210 (except 210.081/281) as of 3/97	GF80.57-P-4102A
		Model 215, 220	GF80.57-P-4102S
		Model 203, 209	GF80.57-P-4102PP
	Ignition/starter switch (S2/1)	Circuitry of circuit 50 refer to wiring diagrams group 15, 54