142 ENGINE2.2LDICOR Fig. 232 Fig. 233 Fig. 234 Boost pressure sensor 10. Boost pressureSensor (Fig. 232) This sensor provides accurate air pressure value to ECU. This is located on the inter cooler unit. 11. Rail PressureSensor (Fig.233) This sensor is fitted on the fuel rail and gives a close loop control of the rail pressure. Fuel is maintained at a high pressure in the fuel rail depending on requirement of the engine. 12. Throttle Pedal sensor (Fig. 234) This sensor tells the ECU about the position of the accelerator pedal. This input is used to determine the torque required to drive the vehicle which in turn determines the requirement of fuel quantity. This is a dual potentiometer sensor for the safety & correct inputs (Driver's request/Throttle position) to ECU. ThrottlePedal sensor checkingvalues 1.25K ohm +/- 20% between terminals 1 & 5 0.9K ohm +/- 20% between terminals 2 & 4
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