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· Engine
is not in the start phase
· Engine
speed higher than 520 rpm
· Mass
air flow meter signal lower than 3.0 kg/h (short circuit to ground)
Note:
The fault can generally be
expected to be caused by defects in the wiring.
Replacement value:
The control unit takes a
replacement value dependent on the engine speed and throttle valve angle for
the load signal.
If the throttle valve
potentiometer is also defective, the following replacement values are used
for calculation:
X 25 XE:
For engine speed lower than
1000 rpm with load signal 2.0 ms
For engine speed higher than
1000 rpm with load signal 3.0 ms
X 30 XE:
For engine speed lower than
2000 rpm with load signal 2.0 ms
For engine speed higher than
2000 rpm with load signal 3.0 ms
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