Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,872
Lane- Normally you just take it off and either blow through it if you like the taste of gasoline, or hook up some low pressure air (hand pump?) and see if there is a restriction. The rollover valve should only pass air one direction since its secondary (primary?) funtion is an anti-reverse valve. The tank ventilation valve is two way (26 above) and should pass air both ways.
Possibility the charcoal filter is clogged or the purge solenoid valve (44) is not activating to clear it?
Cannot think of an easy way to do any of that. Not sure if the SD1/2 can look at that solenoid function or not and what else it can see in the evaporative emissions control system.
Taking one last look at it, he has a tank ventilation problem and a tank ventilation valve is only $20. If it is easy to reach, might be worth a try. The other valves are more expensive.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.
Last edited by tazandjan; 09-29-2011 at 05:41 PM.