Acura 1994 Integra Service Manual page 328

Emission Control System
Evaporative Emission Controls
(cont'dl
Evaporativ€ Emission {EVAPI Two Way Valvo Tasting
l. Remove the tuel fill cao.
2. Remove vapor line trom the two way valve on the
fuel tank and connect to T-fitting trom vacuum
gauge ano vacuum pump as snown.
VACUUM/
PRESSURE GAUGE
oTJAZ-OOI OOOa
A973X-041-XXXXX
f
T-FITTING
Apply vacuum slowly and continuously while watch-
ing the gauge.
Vacuum should stabilize momentarilv at 5-15
m m H g ( 0 . 2 - 0 . 6 i n . H g ) .
a It vacuum stabilizes (valve opensl below5mmHg
(O.2 in.Hg) or above I 5 mmHg (O.6 in.Hg), install
a new valve and retest.
Move vacuum pump hose from vacuum to pressure
titting, and move vacuum gauge hose trom vacuum
to oressure side as shown.
Pressure should stabilize at 1O-35 mmHg (0.4- 1 .4
i n . H g ) .
a lf p.essure momentarily stabilizes {valve opensl
a t 1 O - 3 5 m m H g ( O . 4 - 1 . 4 i n . H g ) , t h e v a l v e i s
oK.
a lf pressure stabilizes below 10 mmHg {O.4 in.Hg)
or above 35 mmHg (1 .4 in.Hgl, install a new valve
and retest.
4 .
J - .
fF
. -,-/ asr^:
,T
4?e
Slowly pressurize the vapor line while watching the
g a u g e .
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