Nissan Sentra manuals

Nissan Sentra Service Manual: Intake manifold runner control

Nissan Sentra Service Manual / Engine / Engine control system / System / Intake manifold runner control

INTAKE MANIFOLD RUNNER CONTROL : System Description

SYSTEM DIAGRAM

SYSTEM DESCRIPTION


SYSTEM DESCRIPTION

Intake manifold runner control valve has a valve portion in the intake passage of each cylinder.

While idling and during low engine coolant temperature, the intake manifold runner control valve closes. Thus the velocity of the air in the intake passage increases, promoting the vaporization of the fuel and producing a intake manifold runner in the combustion chamber.

Because of this operation, this system tends to increase the burning speed of the gas mixture, improve exhaust emission, and increase the stability in running conditions.

Also, except when idling and during low engine coolant temperature, this system opens the intake manifold runner control valve.

In this condition, this system tends to increase power by improving intake efficiency via reduction of intake flow resistance.

The intake manifold runner control valve is operated by the ECM.

Exhaust valve timing control
EXHAUST VALVE TIMING CONTROL : System Description SYSTEM DIAGRAM INPUT/OUTPUT SIGNAL CHART Sensor Input signal to ECM ECM function Actuator Crankshaft position sensor ...

Intake manifold tuning system
INTAKE MANIFOLD TUNING SYSTEM : System Description SYSTEM DIAGRAM SYSTEM DESCRIPTION This system switches the length of intake air path according to the low-to-medium speed range or high spe ...

Other materials:

Rear window defogger power supply and ground circuit
Description Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window from fogging up. Component function check 1. Check rear window defogger Check that the heating wire of rear window defogger is heated when turning the rear window defogge ...

Disassembly and assembly
FUEL LEVEL SENSOR UNIT Exploded View Fuel Level Sensor Unit Fuel filter and pump assembly Fuel level sensor unit Float arm assembly Fuel tank temperature sensor Fuel level sensor unit/fuel tank temperature sensor harness connector Disassembly and Assembly DISASSEMBLY Discon ...

P050A, P050B, P050E Cold start control
Description ECM controls ignition timing and engine idle speed when engine is started with pre-warming up condition. This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions. DTC Logic DTC DETECTION LOGIC NOTE: If DTC P050A, P050B or P050E ...

В© 2014-2025 Copyright www.nisentra.com