ARIA

ENGINE 126 DISTINCT FEATURES OF VAICOR SYSTEM • The VARICOR System is powered by 2.2 L VAR- ICOR engine which uses contemporary Delphi 1600 bar fully-electronic Common Rail Injection system. • In case of engine getting overheated, ECU re- duces 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 & indi- cates the status of fault via the “MIL” lamp. • Corrections for different environmental conditions such as hot climate, cold climate & altitude. VAR- ICOR engine adjusts automatically to suit variation in external environment conditions. • Cylinder balancing: The engine speed is well bal- anced by reducing cyclic variations in the engine as all the injectors/Injection parameters are pre- cisely controlled by ECU. • Anti-Oscillation Strategy (AOS): Jerks during sudden accelerations on ARIA VARICOR has been minimized by using this strategy. The en- gine 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 Sys- tem) 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 INSTRUC- TIONS Follow the below recommended cleanliness pro- cedures 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 run- ning. • After opening the injection circuit it is strictly for- bidden to use any tools/ equipment made of a material which may cause a risk of shedding par- ticles 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 intro- duce contaminants into the system.