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ENGINE
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Distinct Features of VARICOR System :
The VARICOR System is powered by 2.2 L
VARICOR engine which uses contemporary
Delphi 1600 bar fully-electronic Common Rail
Injection system.
In case of engine getting overheated, ECU
reduces the power of the engine as a
precaution from getting damaged.
Fault detection – ECU constantly monitors the
functioning of various sensors & actuators and
detects the faults generated in the system &
indicates the status of fault via the “MIL” lamp.
Corrections for different environmental
conditions such as hot climate, cold climate &
altitude.
VARICOR
engine
adjusts
automatically to suit variation in external
environment conditions.
Cylinder balancing: The engine speed is well
balanced by reducing cyclic variations in the
engine as all the injectors/Injection parameters
are precisely controlled by ECU.
Anti-Oscillation Strategy
(AOS):
Jerks during
sudden accelerations on ARIA VARICOR has
been minimized by using this strategy. The
engine speed, vehicle speed & gear change is
continuously monitored & adjustments are
made in such a way to enhance driving
pleasure.
ADVANTAGES OF A VARICOR TECHNOLOGY
Electronically controlled fuel injection system
High pressure injection (1600 bar) for better
emissions & pilot injection for good NVH.
Improved Power and Torque throughout
engine speed range
Excellent drivability.
Improved Gradeability /Restart ability·
Excellent cruising ability Lower fuel
consumption
Improved noise characteristics during cruising
Smoother running & enhanced driving
pleasure
Cleaner exhaust
Less CO and particulate emissions.
ECU :
The Electronic control Unit is a 32 bit
microprocessor which controls the injection
parameters ( Fuel System) as well as some of the
vehicle related outputs such as Fan, AC drivability
in gears, variable nozzle turbine (VNT)
turbocharger, EGR Control module etc.
NOTE
For ECU details please refer Engine
Section of this manual.
VARICOR System Cleanliness Instructions :
Follow the below recommended cleanliness
procedures before removal of any common
rail system components:
This is to prevent dust
entry in the system and to avoid damage to the
accurately machined common rail system
components·
Wash hands before the work. If necessary
wear new plastic gloves.
As soon as there is an opening into the
system, it must be blocked using special cap.
After removal and plugging, each component
of the injection system must be stored in a new
hermetically sealed bag.
All plugs / caps and packaging are disposable
and should be discarded after single use.
Before disconnecting the battery make sure
that no data is required from the electronic
control unit
(ECU),
as battery cable disconnection will
erase any fault codes and idle / drive values
held in the keep alive memory (KAM). It is not
necessary to disconnect or remove electronic
control modules.
Disconnect the battery ground cable.
Follow the cleanliness and safety instructions
and use the correct tightening torques.
Once the engine stops wait for 5 min then
start working on the CR system. Do not work
on the injection system with the engine
running.
After opening the injection circuit it is strictly
forbidden to use any tools/ equipment made
of a material which may cause a risk of
shedding particles or fibers
(wood, cloth,
cardboard…).
In the same way, the use of a
blower, brush or bristles is banned because
these tools are liable to introduce
contaminants into the system.