S2000 L4-2.2L (2004)
Refueling Control Valve: Testing and Inspection
Fuel Tank Vapor Control Valve Test
Special Tools Required
Vacuum pump/gauge, 0 - 30 in.Hg A973X-041-XXXXX
Float Test
1. Make sure the fuel tank is less than half full.
2. Remove the fuel fill cap to relieve the fuel tank pressure, then reinstall the cap.
3. Remove the fuel pipe cover. Disconnect the fuel tank vapor recirculation tube (A), and connect a vacuum pump to the hose.
4. Plug the fuel tank vapor recirculation pipe (B).
5. Apply vacuum to the fuel tank vapor recirculation hose (A).
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If the vacuum holds, replace the fuel tank vapor control valve.
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If the vacuum does not hold, the float is OK. Go to step 1 of the valve test.
Valve Test
1. Make sure the fuel tank is less than half full.
2. Remove the fuel fill cap,
3. Remove the fuel pipe cover. Disconnect the fuel tank vapor signal hose (A).