Evaporative Emissions System: Testing and Inspection

Fig. 30 Checking evaporative line using ``U'' tube pressure gauge:

Exc. 323, 626, 929, B2000, B2600, 1986---88 RX-7 & 1987---88 B2200

1. Disconnect evaporative hose from canister.
2. Using a suitable ``U'' tube pressure gauge, Fig. 30, connect disconnected hose to ``U'' tube pressure gauge.
3. Gradually apply low pressure compressed air into ``U'' tube for 5 minutes. If water level drops, evaporative line is in proper condition. If water level remains the same, replace evaporative line.