ME-SFI starting function

P07.61-3298-06

A1 Instrument cluster

A1e26 CHECK ENGINE indicator lamp (with Code (494) USA version)

A1e58 Engine diagnosis indicator lamp (not with Code (494) USA version)

B6/1 Camshaft Hall sensor

B11/4 Coolant temperature sensor

B17 Intake air temperature sensor

B28 Pressure sensor

B28/5 Pressure sensor downstream of air filter
(on engine 266.980)

B28/6 Pressure sensor upstream of throttle valve actuator
(on engine 266.980)

G2 Alternator

K100kK Fuel pump relay

K100kM Starter relay

L5 Crankshaft position sensor

M1 Starter

M3/3 Fuel pump with fuel level sensor

M16/6 Throttle valve actuator

N3/10 ME-SFI [ME] control unit

N15/5 Electronic selector lever module control unit
(with transmission 722.8)

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N73 EIS [EZS] control unit

S40/5 Start enable clutch pedal switch (with transmission 711.6 or 716.5 and Code (494) USA version)

T1/1 Cylinder 1+2 ignition coil

T1/2 Cylinder 3+4 ignition coil

Y62 Fuel injection valves

CAN Controller Area Network (data bus/CAN bus) (CAN)

LIN Local Interconnect Network (LIN)

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Function sequence

The start function is activated by turning the transmitter key (A8/1) from position 2 (tml. 15 On) to position 3 (tml. 50 On) in the EIS control unit.

Function

The following sub-functions are active:

 Starter control
- The starter is actuated directly via the starter relay

 Ignition
- The high-voltage is distributed directly to the spark plugs without an ignition distributor static high-voltage distribution.

 Cylinder-sequential port injection
- Injection is carried out by the fuel injection valves

 Synchronization of injection and ignition sequences
- Synchronization is required to actuate the ignition coils for cylinders 1+2, the ignition coils for cylinders 3+4 and the fuel injection valves

 Fuel pump control
- The fuel pump with fuel level sensor is actuated via the fuel pump relay

 Start quantity control
- During the start procedure, additional fuel must be injected in relation to the coolant temperature

 Alternator interface
- Messages are exchanged between the ME unit and the alternator via the alternator interface.