Gasoline Injection And Ignition System With Direct Injection, Function - GF07.70-P-0002MNB
Engine 178.9 In Model 190
Input signals
Output signals
Networking
Gasoline injection and ignition system with DI, general
The gasoline injection and ignition system with direct injection in electrical combination with the sensors and actuators of the engine forms the engine management system.
The abbreviated designation "MED 17.7.5" means:
- M = Motronic
- E = Electronic accelerator
- D = Direct injection
- 17.7.5 = Version 17.7.5
The engine management processes the sensor signals and actuates the actuators accordingly. Individual functions of the engine management are controlled and coordinated by the ME-SFI [ME] control unit here.
The engine management is subdivided into the following systems:
- Basic functions
- Engine management
- Fuel injection system
- Ignition system
- Exhaust system
Basic functions
- Control unit diagnosis
- Fault memory
- European On-Board Diagnosis
- Control module programming
- Transport mode
- Variant coding
- DAS stage 4 (FBS 4)
- Torque coordination
- Heat management
- Alternator interface
- Maximum vehicle speed limit
Diagnosis:
For diagnostic purposes, the fault codes of the engine management system can be read out and deleted using a vehicle diagnosis system, and individual diagnostic functions can be specifically actuated.
Control unit programming:
The engine management in the ME-SFI [ME] control unit can be programmed, i. e., the control unit software can be exchanged (replaced) with a vehicle diagnosis system. The software required for control unit programming can be found on the diagnosis system software DVD.
Transport mode:
In transport mode various functions of the engine management are limited.
If the vehicle's kilometer reading is more than 250 km, the "transport mode" system status is deactivated automatically and cannot be reactivated anymore using the vehicle diagnosis system.
Variant coding:
The vehicle model, national version, exhaust variant and transmission version, for example, can be coded with variant coding.
Engine management
- Starter relay actuation
- Throttle valve control
- Safety fuel shutoff
- Transmission overload protection
- Support for ESP®
- DKG control unit support
- Driving on torque limitation
- Suction fan actuation
- Boost pressure control (over wastegate)
- Regulated adjustment of the intake and exhaust camshafts
- ECO start/stop function
Fuel injection system
- Cylinder-selective DI
- Fuel high pressure control
- Start, post-start phase and acceleration enrichment
- Warm-up control
- Idle speed control
- Limp-home function
- Inertia fuel shutoff
- Fuel pump controlling (low fuel pressure)
- Altitude adaptation (integral pressure sensor in ME-SFI control unit)
- Load change function
- RPM limitation
Ignition system
- Multi-spark ignition
- RPM limitation
- Knock sensor system
- Synchronization of camshaft and crankshaft position
Exhaust system
- Catalytic converter heating
- Oxygen sensor heater controlling
- Straight-line lambda control
- Gasoline particulate filter (with code 598 (Gasoline particulate filter (OPF) with sensor system))
Engine 178.9 in model 190
with code U20 (AMG Performance exhaust system, switchable)
Engine 178.9 in model 190
with code U78 (AMG sports exhaust system)
To regulate the sound, the exhaust system is fitted as standard with two continuously adjustable exhaust flaps. These are actuated by the exhaust gas flap actuator motors in a load-dependent manner and by the ME-SFI [ME] control unit via a characteristics map of the respective drive program.
The exhaust flap actuator motors are diagnosable.
If one or both exhaust gas flaps cannot be opened, the engine output is reduced.
| Ignition ON, function | GF07.10-P-1000MNB | ||
| Starting, function | GF07.10-P-1001MNB | ||
| Ignition OFF, function | GF07.10-P-1002MNB | ||
| Fuel supply, function | GF07.10-P-1003MNB | ||
| Injection regulation, function | GF07.10-P-1004MNB | ||
| Ignition system function | GF07.10-P-1005MNB | ||
| Synchronize fuel injection and firing order function | GF07.10-P-1006MNB | ||
| Start, post-start phase and warm-up enrichment, function | GF07.10-P-1007MNB | ||
| RPM control, function | GF07.10-P-1008MNB | ||
| Alternator interface function | GF07.10-P-1009MNB | ||
| Lambda control, function | GF07.10-P-1010MNB | ||
| Smooth running control, function | GF07.10-P-1011MNB | ||
| Thermal management, function | GF07.10-P-1012MNB | ||
| Torque coordination, function | GF07.10-P-1013MNB | ||
| Overrun mode fuel shutoff, function | GF07.10-P-1014MNB | ||
| Knock control, function | GF07.10-P-1015MNB | ||
| Camshaft adjustment, function | GF07.10-P-1016MNB | ||
| Engine limp-home mode, function | GF07.10-P-1019MNB | ||
| On-board diagnosis, function | GF07.10-P-1020MNB | ||
| Engine timing start-stop function | GF07.10-P-1041MNB | ||
| Charging, function | GF09.00-P-2000MNB | ||
| Exhaust treatment function | GF14.00-P-3000MNB | ||
| Electronic accelerator function | GF30.20-P-3015MNB | ||
| On-board refueling vapor recovery function | Engine 178.9 in model 190 with code 494 (US version) |
GF47.10-P-3004MNB | |
| Purging function | GF47.30-P-3015MNB | ||
| Purging system with leak test function | Engine 178.9 in model 190 with code 494 (US version) |
GF47.30-P-3016MNB |