Evaporative Emissions: ORVR: Description
Onboard Refueling Vapor Recovery (ORVR) System Schematic and components. See Fig 1.
| 1 - FUEL TANK (PLASTIC) | 11 - NATURAL VACUUM LEAD DETECTION (NVLD) |
| 2 - FUEL FILLER TUBE | 12 - LIQUID SEPARATOR (IF EQUIPPED) |
| 3 - FUEL CAP (PRESSURE/RELIEF) | 13 - ENGINE WIRING HARNESS TO NVLD |
| 4 - FILL TUBE TO FUEL TANK CONNECTOR (ELASTOMERIC) | 14 - VAPOR CANISTER |
| 5 - TANK VENT/ROLLOVER VALVE(S) | 15 - PURGE LINE |
| 6 - VAPOR RECIRCULATION LINE | 16 - PURGE DEVICE |
| 7 - TANK VAPOR LINE | 17 - WITHOUT NVLD |
| 8 - VAPOR LINE TO CANISTER | 18 - BREATHER ELEMENT |
| 9 - CHECK VALVE (N/C) | 19 - FLOW CONTROL ORIFICE |
| 10 - CONTROL VALVE | 20 - SERVICE PORT |
| - | 21 - WITH NVLD |