Mechanical Inspection
- Turn ignition switch OFF.
- Disconnect the NVLD connector.
- Remove the NVLD.
- Connect the hose (A) to the canister hose connected port as below.
- After immersing the hose (A) in water, Apply more than 6 mbar (positive) pressure to Atmosphere port (B).
- If the NVLD is normal, many bubbles will indicate large leak.
NOTE:
Allowable internal leakage of 0.35 g/hr at 3 mbar will show as one bubble every second (approximately).