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SEF312N INSPECTION NMEC0019 EVAP Canister NMEC0019S01 Check EVAP canister as follows: Blow air through port A orally. Make sure that there is no leak- 2. Apply vacuum to port A. Block port D. Blow air through port C MEC744B Fuel Check Valve NMEC0019S11 1. Blow air through connector on fuel tank side. 2. Blow air through connector on EVAP canister side. 3. If fuel check valve is suspected of not properly functioning in SEF989X SEF943S Fuel Tank Vacuum Relief Valve (Built into fuel filler cap) NMEC0019S03 1. Wipe clean valve housing. 2. Check valve opening pressure and vacuum. Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kg/cm 2 , 2.22 - 2.90 psi) Vacuum: −6.0 to −3.4 kPa (−0.061 to −0.035 kg/cm 2 , −0.87 to −0.50 psi) 3. If out of specification, replace fuel filler cap as an assembly. CAUTION: Use only a genuine fuel filler cap as a replacement. GI MA EM LC FE CL MT AT PD AX SU BR ST RS BT HA SC EL IDX ENGINE AND EMISSION BASIC CONTROL SYSTEM DESCRIPTION Evaporative Emission System (Cont’d) EC-23 |