Engine

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Electronic throttle control
The ME 7 engine management system uti-
lizes electronic throttle control. This enables
the Motronic ECM to control the intake
charge volume and velocity for optimization of
engine torque.
The throttle valve control module has been
modified from the M5.9 system to allow the
Motronic ECM to drive the throttle valve
under all running conditions. This new system
eliminates the use of a mechanical link
between the accelerator pedal and the throt-
tle valve housing.
The Motronic ECM J220 positions the throttle
valve according to torque demands, allowing
the ECM to control throttle angle. This is a
key factor in torque management.
The throttle valve control module allows the
throttle valve angle to be optimized for maxi-
mum intake velocity.
Extensive safety measures have been imple-
mented in the hardware and the software.
Dual sensors are used for continual self
checking of signal plausibility. A safety mod-
ule is integrated in the Motronic ECM to mon-
itor the functional processor for proper
operation.
Motronic ME 7