gf0761p3004f

ME fuel supply function

Type gf · emne 07.61 · version 0112 · 2004-02-11

Gælder for: ENGINE 104.941, 104.943 /944 /991 /994 as 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 /944, 111.946 as of 1.6.98, 111.947 /973, 111.975 as of 1.8.96 ENGINE 111.974 with CODE (494a) USA version with CODE (807) Model year 1997 with CODE (808) Model year 1998 ENGINE 119.980 /981 /982 /985 ENGINE 120.982/ 983 ENGINE 111.945 in MOD

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Placering

Funktionsgruppe 1 Motor › 07 Blandingstilberedning › 07.61 Benzinindsprøjtnings- og tændingssystem ME — Serie 202 (modeller 020, 080) · Serie 208 (modeller 335, 435)

Gælder også for motorer/gearkasser: 104 941, 104 943, 104 944, 104 991, 104 994, 104 995, 111 921, 111 942, 111 943, 111 944, 111 945, 111 946, 111 947, 111 973, 111 974, 111 975, 119 980, 119 981, 119 982, 119 985, 120 982, 120 983

GF07.61-P-3004F

ME fuel supply function

10.7.96

ENGINE 104.941,
104.943 /944 /991 /994 as 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 /944,
111.946 as of 1.6.98,
111.947 /973,
111.975 as of 1.8.96

ENGINE 111.974
with CODE (494a) USA version
with CODE (807) Model year 1997
with CODE (808) Model year 1998

ENGINE 119.980 /981 /982 /985

ENGINE 120.982/ 983

ENGINE 111.945
in MODEL 208.335/435 as of 1.6.98,
202.020 /080 as of 1.9.98

ME fuel supply function

P07.60-0228-06

Shown on engine 120

17 Fuel rail

40 Diaphragm pressure regulator

51 Pressure gauge connection

55 Fuel filter

75 Fuel tank

M3 Fuel pump (FP)

Y63 Left injectors (LH-SFI [LH])

Y64 Right fuel injectors
(Y62 fuel injectors on engines
104, 111, 119)

A Connection of intake manifold vacuum

The fuel supply system must make available to the fuel injectors an adequate quantity of filtered fuel from the fuel tank, and at an adequate pressure (injection pressure), in all operating conditions.

Function

The fuel pump (M3) draws the fuel out of the fuel tank (75) and pumps it through the fuel filter (55) to the injectors connected to the fuel rail (17). The fuel pressure is controlled between 3.2 to 4.2 bar by the diaphragm pressure regulator (40) in line with the intake manifold pressure.

Excess fuel flows back pressureless from the diaphragm pressure regulator (40) to the fuel tank (75). As a result of this circulation relatively cool fuel is always available for injection (avoids the formation of vapor bubbles). The fuel injectors operated by the ME-SFI control unit, inject the fuel as a finely atomized spray into the intake passage.

Motor electronics control unit, location/task/design/function

GF07.61-P-5000F

Fuel pump location/task/design/function

GF47.20-P-4003L

Fuel filter location/task/design/function

GF47.20-P-4004L

Diaphragm pressure regulator, location/task/design/function

GF07.17-P-4106F

ME fuel rail, location/task/design/function

GF07.61-P-3101F

Fuel injector, location/task/design/function

GF07.03-P-5004F

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

Fuel pump relay integrated

GF54.10-P-4033K

Voltage supply of ME-SFI control unit function

GF07.61-P-5001F

Fuel tank, location/design/function

Model 210

GF47.10-P-3000B

Model 170

GF47.10-P-3000D

Model 202, 208

GF47.10-P-3000E

Model 129

GF47.10-P-3000A

Model 140

GF47.10-P-3000C

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