Pressure Testing Of Fuel Tank System During State Emission Test (11-63-00)
Publication date: 2000-11-01Reference number: 11-63-00
PRESSURE TESTING OF FUEL TANK SYSTEM DURING STATE EMISSION TEST
TECHNICAL SERVICE BULLETIN
Reference Number(s): 11-63-00, Date of Issue:
November 1, 2000
| SUBARU: | 1980-1989 Vehicles |
DESCRIPTION
Pressure Testing of Fuel Tank System During State Emission Test
The U.S. Environmental Protection Agency has issued evaporative technical guidance requirements for conducting a functional pressure test of the evaporative system on pre-1996 model year vehicles as part of the state emission inspections. The evaporative pressure testing of the fuel tank system consists of identifying and clamping off the vapor hose line from the fuel tank as close to the evaporative canister as possible. The vehicle shall fail the test if the fuel vapor control system loses more than six inches of water pressure over a period of 120 seconds starting from a stabilized pressure of 14 +/- 1 inch of water.