Additions:
{{sourcebigbox2}}
{{sourcebigbox2}}
{{sourcebigbox2}}
{{linkunit2}}
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{{source4}}
{{sourceslim}}
{{source4}}
Additions:
**CAUTION:** Always relieve fuel pressure before disconnecting any fuel injection related component. DO NOT allow fuel to contact engine or electrical components.
===''FUEL CONTROL''===
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Deletions:
**CAUTION: Always relieve fuel pressure before disconnecting any fuel injection related component. DO NOT allow fuel to contact engine or electrical components.**
====''FUEL CONTROL''====
Deletions:
>>{{source1}}>> ====''IDLE SPEED''====
==''A/C Clutch Engagement Delay''==
When ECM receives a demand for cooling from air conditioning system (A/C switch), it delays A/C clutch relay activation for a short time. This prevents compressor clutch from being energized until ECM enriches the fuel injection mixture, ensuring smooth transition into A/C mode without overloading engine.
==''Idle Air Control (IAC) Valve''==
Engine idle speed is controlled by IAC and fast idle valve. IAC varies amount of air by-passing throttle plate (into intake manifold) in response to signals from ECM. After engine starts, IAC opens for a short time to increase idle speed. Activation time is dependent upon engine coolant temperature. When coolant temperature is low, IAC is held open to obtain proper fast idle speed. After engine reaches normal operating temperature, IAC is activated only to maintain minimum idle speed.
==''Idle Air Control (IAC) Thermal Valve''==
Formerly called fast idle valve, IAC thermal valve allows additional air to by-pass throttle plate into intake manifold. Increased idle speed prevents engine from running erratically during warm-up. Valve is controlled by a thermowax plunger, which contracts when cold and expands when hot.
Additions:
>>{{source1}}>> ====''IDLE SPEED''====
===''TORQUE SPECIFICATIONS - Ft. Lbs. (N.m)''===
~-Banjo Bolt: 16 (22)
~-Distributor Retaining Nuts: 18 (24)
~-Fuel Tank Drain Bolt: 36 (50)
~-Mounting Nuts: 16 (22)
~-Oxygen Sensor (O2S) 33 (45)
~-Service Bolt 16 (22)
~-Throttle Body Mounting: Nuts 16 (22)
~- Fuel Pump Retaining Nuts: 48 Inch Lbs. (6 N.m.)
Deletions:
>>{{source2}}>> ====''IDLE SPEED''====
Additions:
**CAUTION: Always relieve fuel pressure before disconnecting any fuel injection related component. DO NOT allow fuel to contact engine or electrical components.**
==''Fuel System Pressure Release''==
Remove negative battery cable. Loosen fuel tank filler cap. Locate 6-mm service bolt on fuel filter. Place clean shop rag around service bolt. To relieve system pressure, slowly loosen service bolt one complete turn. Always replace washer under 6-mm service bolt after loosening.
{{sourceslim}}
==''Fuel Rail and Injector''==
**Removal**
Relieve fuel pressure. See beginning of page. Disconnect electrical connectors from injectors. Disconnect vacuum and fuel return hoses from fuel pressure regulator. Place a shop towel over hoses before disconnecting them. Loosen retaining nuts on fuel rail and harness holder. Disconnect fuel rail. Remove injectors from intake manifold.
**Installation**
Place NEW "O" rings on injectors, and coat with engine oil. Assemble injectors on fuel rail. Install fuel rail assembly into intake manifold. To complete installation, reverse removal procedure.
==''Fuel Pump Removal and Installation''==
On Honda Civics, remove rear seat, remove access cover. On Honda Civic Del Sol, remove left maintenance access cover in luggage compartment. Disconnect fuel lines and harness connector. Remove fuel pump mounting bolts. Remove fuel pump from fuel tank. To install, reverse removal procedure.
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==''Fuel Injector''==
Additions:
==''Fuel Injection''==
>>{{source2}}>> ====''IDLE SPEED''====
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>>{{source2}}>> ==''Fuel Injection''==
====''IDLE SPEED''====
No differences.
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>>{{source2}}>> ==''Fuel Injection''==
{{source4}}
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Honda Civic 1992-1995
==''Fuel Injection''==
No differences.