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1999-2000 Honda Civic Si Racing Intake Manifold

June 30th, 2010 · No Comments

Before installation, thoroughly flush manifold with water and let completely dry. Disconnect battery and drain coolant before beginning. Mark and identify all hoses and valves. Check condition of all hoses, gaskets and O-rings. Replace as needed. Do not smoke during the work. Keep open flames away from work area. Some pieces are not included in kit and can be purchased at any local Acura or automotive parts retailer.
• 1996-1997 Honda Del Sol DOHC VTEC requires the use of a T-fitting
• 1999-2000 Honda Civic DOHC VTEC requires the use of a 1/8” tap and fitting
Removal 1. Relieve fuel pressure by loosening banjo bolt on top of fuel filter. Disconnect the fuel line at fuel rail. It is recommended that the washers be replaced. Next, disconnect the fuel injector harness holder and unbolt. Disconnect hoses from fuel pressure regulator (FPR).
2. Disconnect intake tubing/pipe from throttle body. Next, disconnect all hoses leading to intake manifold and throttle body, including throttle cable bracket on manifold. On throttle body, disconnect throttle positions sensor (TPS) and map sensor.
3. Unbolt manifold bracket from engine block and intake manifold. This bracket will not be used in assembly and installation. Remove intake manifold, throttle body, and fuel rail as one unit. Inspect intake manifold gasket. Replace as needed. Make sure to note all disconnect hoses and sensors.
4. Unbolt throttle body from intake manifold; inspect throttle body gasket for damage. Replace as needed. Unscrew throttle body bolts from flange. Remove fuel rail assembly.
5. From factory intake manifold, unbolt and remove idle air control (IAC) valve, intake air temperature (IAT) valve, and O-rings. Inspect O-rings and replace as needed. Unscrew intake manifold bolts from flange. *For 99-00 Civic Si: IAT sensor is located on intake tubing/pipe. Evaporative emission (EVAP) purge control solenoid valve is located on fuel rail. Disconnect hoses leading to charcoal canister and manifold.


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