· Self- test
of exhaust gas recirculation system (exhaust stream measurement):
The control unit measures the intake manifold
pressure immediately before and during the self- test of the exhaust gas
recirculation system.
The control unit recognises a difference lower than
5 kPa (50 mbar).
· Above condition
must be fulfilled twice
Effects:
· The exhaust gas
recirculation system is switched off
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