gf3022p0003e

ME-SFI idle speed control function

Typ gf · téma 30.22 · verze 0121 · 2008-03-17

Platí pro: ENGINE 104.941 /943 /944 /991 /994 as of 1.8.96 ENGINE 104.995 with CODE (494) USA version with CODE (807) Model year 1997 with CODE (808) Model year 1998 with CODE (498) as of Model Year 97 Japan 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 (494) USA version with CODE (807) Model year 1997 with CODE (808) Mo

Není k dispozici v jazyce „cs“; zobrazeno v jazyce Angličtina.

Zařazení

Funkční skupina 1 Motor › 30 Regulace, rychlostní regulace › 30.22 Regulace volnoběhu (LLR) — Řada 202 (modely 020, 080) · Řada 208 (modely 335, 435)

Platí také pro motory/převodovky: 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, 112 910, 112 911, 112 912, 112 913, 112 914, 112 916, 112 917, 112 920, 112 921, 112 922, 112 923, 112 940, 112 941, 112 942, 112 943, 112 944, 112 946, 112 947, 112 949, 112 953, 112 954, 112 955, 112 970, 112 972, 112 973, 112 975, 113 940, 113 941, 113 942, 113 943, 113 948, 113 960, 113 961, 113 963, 113 965, 113 966, 113 967, 113 968, 113 969, 119 980, 119 981, 119 982, 119 985, 137 970

GF30.22-P-0003E

ME-SFI idle speed control function

10.7.96

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

ENGINE 104.995
with CODE (494) USA version
with CODE (807) Model year 1997
with CODE (808) Model year 1998
with CODE (498) as of Model Year 97 Japan 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 (494) USA version
with CODE (807) Model year 1997
with CODE (808) Model year 1998

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

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

ENGINE 119.980 /981 /982 /985

ENGINE 137.970

ENGINE 112.916 up to Model Year 8

ENGINE 112.946 up to Model Year 8

ENGINE 112.953 up to Model Year 8

ENGINE 112.973 up to Model Year 8

ENGINE 113.963 up to Model Year 8

ME-SFI idle speed control function

P30.20-0216-06

B11/4 Coolant temperature sensor
B37 Accelerator pedal sensor
M16/1 EA/CC/ISC [EFP/TPM/LLR] actuator
(other designation:
M16/6 throttle valve actuator)

N3/10 ME-SFI control unit

Task

Controlling idle speed in the case of

different engine loads, e.g. power steering turned to full lock, engaging drive mode, switching on AC compressor

different mixture, e.g. from activated charcoal canister if purging activated (depending on activated charcoal charge)

Function

The actuator EFP/TPM/LLR (additional designation: throttle valve actuator) regulates the idling speed by changing the throttle valve position. It is actuated by the ME-SFI control unit.

The ME-SFI control unit actuates the throttle valve motor (M16/1m1) in line with the input signals received at the ME-SFI control unit (N3/10).

Heating speed of the catalytic converter

In order to warm up the catalytic converter more rapidly to operating temperature, engine speed is increased in the idle speed range to 1100 up to 1500 rpm for about 20 seconds after each starting procedure at coolant temperatures of < 40 °C. When a Drive position is engaged, engine speed is immediately controlled to a lower value.

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Automatic transmission

When a drive position is engaged, a lower engine speed is controlled in order to reduce the creeping tendency of the vehicle. The information "Drive position engaged/not engaged" is transmitted by the ETC control unit (N15/3) over the CAN databus to the ME-SFI control unit.

Ignition angle

To assist the idle speed control, the ignition angle can be retarded by as much as 36° crank angle or advanced by as much as 20° crank angle from the calculated specified value.

The control in the idle speed range by altering the ignition angle reacts more rapidly than altering the position of the throttle valve.

The idling speed can be influenced with HHT or the STAR DIAGNOSIS.

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AC compressor

In order to avoid engine speed dropping in the idle speed range when the AC compressor is engaged, the AC pushbutton control unit (N19) or automatic air conditioning pushbutton control unit (N22) supplies a signal to the ME-SFI control unit (as of approx. 6/96 over CAN) and the opening cross-section of the throttle valve is enlarged.

When the air conditioning unit is switched on and the external temperature exceeds 35° C the idling speed on vehicles delivered from 6/00 is increased for the driving mode selected by about 100 rpm when the switch-on threshold of about 900 rpm is exceeded. This increase is cancelled again when the external temperature drops below 32° C.

Undervoltage

If the engine control unit detects an undervoltage the idling speed is increased until the ignition is switched off for the driving mode selected by about 100 rpm.

If the control unit SBC reports an undervoltage to the engine control unit over CAN the idling speed for the driving mode selected is increased to about 750 rpm.

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

GF07.61-P-5000F

ME-SFI ignition system function

GF15.12-P-0001F

ECI ignition system function

Engine 137

GF15.15-P-3000L

Pedal value sensor, location/task/design/function

GF30.20-P-4011L

Coolant temperature sensor, location/task/design/function

Engine 119, 120

GF07.04-P-5026F

Engine 104, 111

GF07.04-P-5026G

Engine 112, 113, 137

GF07.04-P-5026A

Intake air temperature sensor, location/task/design/function

GF07.04-P-2100F

ME fuel supply function

Engine 104, 111, 119, 120

in Model 129, 140, 170, 202, 208, 210

GF07.61-P-3004F

Engine 112, 113, 137
(except in Model 203, 209, 211)

GF07.61-P-3004A

Engine 112.91/94/95 203

Engine 112.91/94/95, 113.96 in Model 211

Engine 112.912/955, 113.968 in Model 209

GF07.61-P-3004P

Crankshaft position sensor, location/task/design/function

GF07.04-P-4116F

Electronic accelerator/cruise control/idle speed control actuator location/task/design/function

GF30.22-P-4010F

Electronic accelerator pedal emergency running mode function

Engine 120.98

GF30.20-P-4026F

Engine 104, 111, 112, 113, 119, 137

GF30.20-P-4026E

ME-SFI TWC heating-up function

GF07.61-P-3032F

ETC control unit, location/task

Information on selector lever position P/N and gear engaged in the case of automatic transmission.

Transmission 722.6

GF27.19-P-4012G

Clutch pedal switch, location/task/function

with MT

GF29.10-P-2100F

SBC control unit, location/task/function

Model 211, 230: Request for increased idle speed

GF42.46-P-4500SL

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