ENGINE 125 DISTINCT FEATURES OF VAICOR 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.
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