Fuel Tank Vapor Control Valve Test; Float Test; Valve Test - Honda S2000 Service Manual

EVAP System
Fuel Tank Vapor Control Valve Test
SpecialTools Required
V a c u u m p u m p / g a u g e , 0 3 0 i n . H g A 9 7 3 X - 0 4 1 - X X X X X
Float Test
' 1 .
M a k e s u r e t h e f u e l t a n k i s l e s s t h a n h a l f f u l l .
2 . R e m o v e t h e f u e l f i l l c a p t o r e l i e v e t h e f u e l t a n k
pressure, then reinstall the cap.
3. Remove the luel pipe cover. Disconnect the fuel
tank vapor recirculation tube (A), and connect a
v a c u u m p u m p t o t h e h o s e .
Plug the fuel tank vapor recirculation pipe (B).
Apply vacuum to the fuel tank vapor recirculation
h o s e { A ) .
. lf the vacuum holds, replace the fuel tank vapor
control valve (see page 1 1'147 ).
. lf the vacuum does not hold, the float is OK. Go
to step
'l
of the valve test.
A973X-041-XXXXX
ffih
A
5 .
11-146
Valve Test
1 . M a k e s u r e t h e f u e l t a n k i s l e s s t h a n h a l f f u l l .
2 . R e m o v e t h e f u e l f i l l c a p .
3. Remove the fuel pipe cover. Disconnect the fuel
t a n k v a p o r s i g n a l h o s e ( A ) .
....f.
tt.
4. Disconnect the vacuum hoses {A) from the EVAP
canister {B). and then plug the ports with plugs (C).
A973X-041-XXXXX
B A C
Disconnect the vacuum hose (D) from the EVAP
c a n i s t e r v e n t s h u t v a l v e ( E ) , a n d c o n n e c t a v a c u u m
pump to the EVAP canister vent shut valve.
P u m p t h e v a c u u m p u m p 8 0 t i m e s .
' l f t h e v a c u u m h o l d s , g o t o s t e p 7 .
. l f t h e v a c u u m d o e s n o t h o l d , g o t o s t e p 9 .
E
5 .
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