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01 SNR9A00A20336359401LBAT02 − 01 SNR9A00A20336334854FEAT00 Special Tools Required 11-344 11-344 Intake Air System Throttle Body Cleaning Intake Air Bypass Control Thermal A A A B Do not insert your fingers into the installed throttle 1. Check for damage to the air cleaner. If the air cleaner element is damaged, replace it (see page 2. Remove the throttle body; K20Z2 engine (see page 11-348), K20Z3 engine (see page 11-349). 3. Clean off the carbon from the throttle valve and inside the throttle body with a paper towel soaked NOTE: • Remove the throttle body to clean it. not clean the bearing area of the throttle shaft (A). • Do not spray throttle plate and induction cleaner directly on the throttle body. • Use Honda genuine throttle plate and induction cleaner. 4. Install the throttle body (see page 11-348). 5. Reset the ECM/PCM with the HDS (see page 11-4). 6. Turn the ignition switch to ON (II), and wait 2 seconds. 7. Do the ECM/PCM idle learn procedure (see page 11-310). Vacuum pump/gauge, 0 30 in.Hg, Snap-on YA4000A or equivalent, commercially available 1. Start the engine, then let it idle. NOTE: The engine coolant temperature must be 2. Remove the engine cover (see step 1 on page 9-3). 3. Remove the vacuum hose (A) from the intake air duct, and connect a vacuum pump/gauge (B) to the 4. Raise and lower the engine speed, and make sure the vacuum gauge reading changes as the engine If the vacuum reading does not change, check for • Misrouted, leaking, broken, or clogged intake air bypass control system vacuum lines. • A cracked or damaged intake air bypass control thermal valve. Replace the valve if needed 5. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in neutral) until the radiator fan * : This illustration shows K20Z2 engine. 08/08/21 14:31:08 61SNR030_110_0344 |