G643(E) Service Manual Chapter 1. General Information 15 G643E Engine G643 Engine LP FUEL SYSTEM LP FUEL SYSTEM Closed loop LP Carburetion System Open loop LP Carburetion System MIXER: Diaphragm Type Air Valve Assembly inside, Downdraft (Model: CA-100) Diaphragm Type Air Valve Assembly inside, Downdraft (Model: CA-100) REGULATOR: Two-Stage Negative Pressure Regulator (Model: N-2007) Two-Stage Negative Pressure Regulator (Model: N-2001) FUELTRIMVALVE (FTV): Dual Dither System None FUEL FILTRATION: 40 Microns Maximum 40 Microns Maximum ENGINE ELECTRICAL ENGINECONTROLMODULE(ECM):
12 V operation volt, 48 pins of I/O 12 V operation volt, 24 pins of I/O CRANK SENSOR Hall effect Sensor VR sensor built in Distributor TMAP: Intake Air Temp. & Manifold Absolute Press. Sensor Intake Air Temp. & Manifold Absolute Press. Sensor PEDAL ANGLE SENSOR: Two-Output Signals (Installed on Accelerator Pedal) Two-Output Signals (Installed on Accelerator Pedal) OXYGEN SENSOR: Heated Exhaust Gas Oxygen Sensor (HEGO) 12 V operation volt None ECT-ECM: Engine Coolant Temperature Sensor for ECM Engine Coolant Temperature Sensor for ECM ECT-GAUGE Engine Coolant Temp. Sensor for GAUGE on Instrument Panel Engine Coolant Temp. Sensor for GAUGE on Instrument Panel TPS:
Throttle Position Sensor (built in Throttle Body) Throttle Position Sensor (built in Throttle Body) THROTTLE BODY: Electronic Throttle Body Electronic Throttle Body LP FUEL LOCK-OFF: 12 V operation volt 12 V operation volt ENGINE OIL PR. S/W: 21.4 kPa (3.1 psi) 21.4 kPa (3.1 psi) STARTER MOTOR: 12 Volt, 2.0 kW 12 Volt, 2.0 kW ALTERNATOR: 12 Volt, 80 A 12 Volt, 80 A EXHAUST SYSTEM CATALYTIC MUFFLER: Three-way Catalyst with Metal Substrate Muffler without Catalyst