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Home >> Honda >> 1978 >> Accord Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Emissions System - EVAP >> Testing >> Charcoal Canister

Charcoal Canister

  1. Visually inspect canister and replace if damaged. Remove hose leading from purge control solenoid valve to canister at canister. Remove hose leading from carburetor to solenoid valve at solenoid valve and connect it to canister.
  2. Remove gas cap. Disconnect purge air hose from bottom of canister. Start engine and raise speed to 3500 RPM. Place finger over purge air intake at canister and check for suction. If suction is not felt within 1 minute, replace canister and retest.
  3. Install hand-held vacuum pump to fuel tank nipple on canister and apply vacuum. If vacuum holds, replace canister and retest.
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