Category: Fuel & Emissions

Emission Control System Troubleshooting Flowchart Evaporative Emission (EVAP) Controls (cont’d) (To page 11-155) (To page 11-155) GRN BLK/ YEL VACUUM PUMP/GAUGE A973X–041–XXXXX EVAP CONTROL CANISTER EVAP PURGE CONTROL DIAPHRAGM VALVEInspection of Evaporative Emission Controls Disconnect vacuum hose from the EVAP purge control dia- phragm valve (on the EVAP con- trol canister) and connect a vac- […]

Fuel Pressure Regulator Description The fuel pressure regulator maintains a constant fuel pressure to the fuel injectors. When the difference between the fuel pressure and manifold pressure exceeds 343 kPa (3,5 kgf/cm2, 50 psi), the diaphragm is pushed upward, and the excess fuel is fed back into the fuel tank through the fuel return pipe. […]

Idle Control System Idle Speed Setting Inspection/Adjustment NOTE: Before setting the idle speed, check the following items: — The Check Engine light has not been reported on. — Ignition timing — Spark plugs — Air cleaner — PCV system 1. Start the engine. Hold the engine at 3,000 rpm with no load (A/T in position, […]

How to Read Flowcharts A flowchart is designed to be used from start to final repair. It’s like a map showing you the shortest distance. But beware: if you go off the “map” anywhere but a “stop” symbol, you can easily get lost. (bold type) (bold type) Describes the conditions or situation to start a […]

Fuel Tank Replacement Do not smoke while working on fuel system. Keep open flame away from your work area. Make sure lifts are placed properly (see section 1). 1. Raise the car. 2. Remove the drain bolt, and drain the fuel into an approved container. 3. Remove the center rod (see section 5). 4. Disconnect […]

PGM-FI System Engine Control Module (ECM) The Malfunction Indicator Lamp (MIL) stays on or comes on after two seconds. Check the Diagnostic Trouble Code (DTC): 1. Connect a scan tool or Honda PGM Tester. 2. Turn the ignition switch ON (II). 3. Read the DTC with the scan tool or Honda PGM Tester. NOTE: • […]

Intake Air System System Troubleshooting Guide NOTE: Across each row in the chart, the sub-systems that could be sources of a symptom are ranked in the order they should be inspected starting with . Find the symptom in the left column, read across to the most likely source, then refer to the page listed at […]

Fuel Supply System Fuel Injector Resistor Description The fuel injector resistor lowers the current supplied to the fuel injectors to prevent damage to the fuel injector coils. This allows a faster response time of the fuel injec- tors. Testing 1. Disconnect the fuel injector resistor connector. 2. Check for resistance between each of the fuel […]

Inspection If excessive exhaust system back-pressure is suspected, remove the catalytic converter from the car and make a visual check for plugging, melting or cracking of the catalyst. Replace the catalytic converter if any of the visible area is damag- ed or plugged. HEAT SHIELD GASKET Replace. 34 N·m (3.4 kg-m, 25 Ib-ft) 34 N·m […]

Fuel Supply System System Troubleshooting Guide NOTE: Across each row in the chart, the systems that could be sources of a symptom are ranked in the order they should be inspected starting with . Find the symptom in the left column, read across to the most likely source, then refer to the page listed at […]