Expo LRV AWD L4-1834cc 1.8L SOHC 16 Valve (1992)
Fuel Filler Cap: Testing and Inspection
Fuel Filler Cap Operation
The fuel filler cap should vent internal pressure at or under 1.5 psi to maintain tank structural integrity. The cap is also required to allow outside
air to enter when a vacuum exists in the fuel tank.
