Category: Fuel & Emissions

Evaporative Emission (EVAP) Controls Description The evaporative emission controls are designed to minimize the amount of fuel vapor escaping to the atmosphere. The system consists of the following components: A. Evaporative Emission (EVAP) Control Canister An EVAP control canister is used for the temporary storage of fuel vapor until the fuel vapor can be purged […]

Air Intake System Chamber Volume Control Valve Test CAUTION: Do not adjust the chamber volume control valve full-close screw. It was preset at the factory. 1. Check the chamber volume control valve shaft for binding or sticking. 2. Check the chamber volume control valve for smooth movement. 3. Check that A of the chamber volume […]

Evaporative Emission Controls Description The evaporative controls are designed to minimize the amount of fuel vapor escaping to the atmosphere. The system consists of the following components: A. Charcoal Canister A canister for the temporary storage of fuel vapor until the fuel vapor can be purged from the canister into the engine and burned. B. […]

Throttle Cable Inspection/Adjustment 1. Warm up the engine to normal operating tem- perature (cooling fan comes on). 2. Check that the throttle cable operates smoothly with no binding or sticking. Repair as necessary. 3. Check cable free play at the throttle linkage. Cable deflection should be 10-12 mm (0.39-0.47 in.) Installation 1. Fully open the […]

Chamber Volume Control System Disassembly 12 N·m (1.2 kg-m, 9 Ib-ft) 22 N·m (2.2 kg-m, 16 Ib-ft) INTAKE MANIFOLD 22 N·m (2.2 kg-m, 16 Ib-ft) GASKET Replace CHAMBER VOLUME CONTROL VALVE GASKET Replace GASKET Replace CHAMBER WASHER Replace 22 N·m (2.2 kg-m, 16 Ib-ft) Attachments nsxe11123a (129 kB)

Emission Control System Three Way Catalytic Converter (cont’d) Inspection If excessive exhaust system back-pressure is suspected, remove the three way catalytic converter from the car and make a visual check for plugging, melting or cracking of the catalyst. Replace the three way catalytic converter if any of the visible area is damaged or plugged. 34 […]

Evaporative Emission (EVAP) Two Way Valve Testing 1. Remove the fuel fill cap. 2. Remove vapor line from the fuel tank and connect to T-fitting from vacuum gauge and vacuum pump as shown. VACUUM/PRESSURE GAUGE 0-4 in. Hg 07JAZ-001000 A VACUUM PUMP/ GAUGE A973X-041-XXXXX T-FITTING 3. Apply vacuum slowly and continuously while watch- ing the […]

Fuel Supply System Fuel Injectors (cont’d) Replacement Do not smoke during the work. Keep open flames away from your work area. 1. Relieve fuel pressure (page 11-87). 2. Remove the intake manifold covers. 3. Disconnect the connectors from the injectors. 4. Disconnect the vacuum hose and fuel return hose from the pressure regulator. NOTE: Place […]

System Description Electrical Connections FUSES CLOCK (7.5 A)* ACG (120 A)** ACG(S) (20 A)** IG COIL (30 A)** No. 2 (15 A) No. 5 (10 A) No. 4(15 A) No. 7 (7.5 A) In the under-hood fuse/relay box In the engine compartment fuse/relay box CKP/CYP SENSOR TO A/T GEAR POSITION SWITCH NEUTRAL SWITCH (M/T) AUTO […]

Emission Control System Positive Crankcase Ventilation (PCV) System Description The Positive Crankcase Ventilation (PCV) system is designed to prevent blow-by gas from escaping to the atmosphere. The PCV valve contains a spring-loaded plunger. When the engine starts, the plunger in the PCV valve is lifted in proportion to intake manifold vacuum and the blow-by gas […]