Component Tests and General Diagnostics

1. Install the Rotunda Evaporative Emission System leak Tester including compressed gas 134-00056 or equivalent, by following the instructions that come with the tester.
2. Turn the ignition key to the ON position.
3. Carry out the evaporative emission system vacuum leak test by allowing the tester to read the amount of vacuum leakage over a predetermined time. The test result displayed by the tester will show the pressure differential as well as a pass (green) or failed (red) light.
4. Carry out the evaporative emission system pressure leak test by pressurizing the evaporative emission system at 3.48 kPa
5. Remove the ultra-sonic leak detector provided with the tester and place the earphones over your ears. Adjust the audio dial on the detector.
6. Closely pass the probe of the detector over all of the fuel vapor hoses and connections. An increase in volume of sound in the earphones indicates a leak.
7. Repair any leaks that have been indicated during this test.
8. If a Pinpoint Test directed you here after changing a component, disconnect the test equipment then unplug and connect all of the hoses, the system is now O.K. Otherwise, return to the Pinpoint Test that directed you here. Pinpoint Tests