Honda Prelude 1993 Service Manual page 404

Emission Control System
Evaporative Emission (EVAP) Controls {cont'd)
{From page 1 1-1631
VACUUM PRESSUNE
GAUGE 0-4 in. Hg
o7JA2 -OO10008
Connect a vacuum gauge to
EVAP control canister purge air
nose,
Connect a vacuum gauge to the
purge hose and raise lhe €ngine
sDeed to 3,5OO rpm.
Does vacuum appgar on gauge
within
'l
minute ?
Inlpacl tho purgo hoas
..d throt r body po.t
tor pinch or blockag..
Soo EVAP two way valvo tost to
comoloto.
Evaoorativo ombsion control! aro
oK.
Rsol6c6 th6 EVAP conttol caniator.
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