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ENGINE - Control System
CONTROL SYSTEM
The control system used is basically the same as that in
the conventional 6G72 engine in the SIGMA. However,
some parts differ as shown below.
Main items changed or added Notes
Control relay and fuel pump power circuit have
·
Simplified power circuit
been changed.
·
Basically the same as the 4G9-DOHC engine
Crank angle sensor mounting position has been
·
Improvement in crank angle sensor precision
changed. (Crank angle previously detected from Improvement in ignition timing control precision
the camshaft is now detected directly from the
crankshaft.)
Adoption of fuel pump relay No.2 and fuel pump Improvement in fuel pump reliability
resistor
Fuel pressure control has been added.
(Refer to P.1-26.)
Turbo pressure control has been added. Control additions to correspond to adoption of a turbocharger
Turbo meter control has been added.
Adoption of a twin oxygen sensor system Reduction in exhaust gas levels
<Vehicles for Europe, Hong Kong and Singapore>
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