Lotus 2004 ELISE Service Notes page 274

Lotus Service Notes
Other possibilities include:
- Poorly sealing fuel filler cap. Check tightness, body foul conditions, sealing ring integrity.
- Pipe and hose connections.
- Canister close vent valve (CCVV). Check by clamping hose between canister and vent valve. A
significant improvement indicates a suspect valve. Clean or renew. Note that once the CCVV and
the VMV have been clamped, any remaining leakage will be either in the canister tank connection or
the fuel tank assembly.
Pressure loss greater than 3" H
(P0442 - major pressure loss) to be set. Causes of this level of leakage, equivalent to a 1.0 mm hole
(0.040 inch) may be caused by any of the above.
A gross leak will cause a trouble code P0455 to be set, the possible causes of which include filler cap
sealing, or fuel filler hose connections.
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O (0.75 kPa) will cause the MIL to be illuminated and a trouble code
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