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N-VTC varies valve timing by rotating the affected camshaft relative to the sprocket; valve lift and duration are not altered. This rotation is achieved when an electric solenoid, controlled by the car's ECU, allows pressurized engine oil to flow into and through the cam and into a slave mechanism, axially advancing camshaft timing relative to ...
Nissan QR25DE Engine The QR25DE is a 2.5 L (2,488 cc) variant built with cast steel connecting rods, a steel timing chain, counter-rotating balance shafts , and an aluminum intake manifold. The engine bore and stroke is 89 mm × 100 mm (3.50 in × 3.94 in) and a compression ratio ranging from 9.5:1 to 10.5:1 depending on the vehicle.
The data link connector (DLC) is the multi-pin diagnostic connection port for automobiles, trucks, and motorcycles used to interface a scan tool with the control modules of a given vehicle and access on-board diagnostics and live data streams. [1] Prior to 1996, many OBD-I data link connector's were in the engine compartment, usually near the ...
The cam can be seen as a device that converts rotational motion to reciprocating (or sometimes oscillating) motion. [clarification needed] [3] A common example is the camshaft of an automobile, which takes the rotary motion of the engine and converts it into the reciprocating motion necessary to operate the intake and exhaust valves of the cylinders.
Nissan engineers wanted the VG to have improved performance, fuel economy, reliability, and refinement, while being both lighter and more compact than its predecessor. The resulting engine was designed by Nissan from scratch, and shared few mechanical components with its predecessor, or with any other automaker.
Unlike the OBD-I connector, which was sometimes found under the bonnet of the vehicle, the OBD-II connector is required to be within 2 feet (0.61 m) of the steering wheel (unless an exemption is applied for by the manufacturer, in which case it is still somewhere within reach of the driver). SAE J1962 defines the pinout of the connector as:
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In the new Nissan X-Trail, Qashqai and C-Platform Sentra, the MR20DE produces 108 kW; 145 hp (147 PS) at 5100 rpm and 199 N⋅m (147 lb⋅ft) of torque at 4800 rpm. Middle East version of the MR20DE engine that goes in the Nissan Qashqai produces 110 kW; 148 hp (150 PS) at 5200 rpm and 200 N⋅m (148 lb⋅ft) of torque at 4400 rpm.