1996 ACURA RL KA9 Service Repair Manual

EVAP contro l caniste r ven t shu t
valv e test .
Chec k th e EVA P contro l caniste r
ven t shu t valve :
1 . Disconnec t th e vacuu m hos e
fro m th e EVA P thre e wa y
valve , an d connec t a vacuu m
pum p t o th e hose .
2. Tur n th e ignitio n switc h O N (II) .3. Appl y vacuu m to th e hose .
Dos e th e valv e hol d vacuum ?
YES
Chec k th e EVA P contro l caniste r
ven t shu t valve :
1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e EVA P caniste r
ven t shu t valv e 2 P connector .
3 . Chec k fo r continuit y betwee n
th e EVA P contro l caniste r ven t
shu t valv e 2 P connecto r termi -
na l No . 2 an d bod y ground .
I s ther e continuity ?
YES
Chec k fo r a n shor t i n th e wir e
(VS V line) :
1 . Disconnec t th e PC M connec -
tor F (8P) .2. Chec k fo r continuit y betwee n
th e EVA P contro l caniste r ven t
shu t valv e 2 P connecto r termi -
nal No . 2 an d bod y ground .
Is ther e continuity ?
NO
Substitut e a known-goo d PC M
an d rechec k (se e pag e 11-42 fo r
immobilize r information) . I f
symptom/indicatio n goe s away ,
replac e th e origina l PCM .
EVAPCONTRO LCANISTER
EVAP contro l caniste r ven t shu t
valv e is OK . D o th e vacuu m hose s
an d connection s tes t (se e pag e
11-186 ).
VACUU M
PUMP/GAUGE , 0 - 3 0 in.H g
A973 X - 04 1 - XXXX X
EVAPTHRE E WA YVALV E
EVAP CONTRO LCANISTER VEN T SHU T
VALV E 2P CONNECTO R (C316 )
Wir e sid e o f femal e terminal s
Replac e th e EVA P contro l caniste r
ven t shu t valv e an d O-ring .
Repai r shor t i n th e wir e betwee n
PC M (F5 ) an d EVA P contro l canis -
te r ven t shu t valve .
YES
NO
N
O
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Emission Contro l Syste m
Evaporativ e Emissio n (EVAP ) Control s (cont'd )
Are th e part s OK ?
Repair o r replac e th e parts .
YES
Substitut e a known-goo d PC M
an d rechec k (se e pag e 11-42 fo r
immobilize r information) . I f
symptom/indicatio n goe s away ,
replac e th e origina l PCM .
Vacuu
m hose s an d connection s
test .
Chec k th e vacuu m hose s an d con -
nections :Check followin g part s fo r leakag e
t o atmospher e (se e pag e 11-175 ):
Fue l tan k
Fue l
fill ca pFue l fil l pip e
EVA P two-wa y valv e
Fue l tan k pressur e senso r
NO
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'00 - 0 1 models :
Troubleshootin g Flowchar t
Is th e prope r fue l fil l ca p installe dand properl y tightened ? Replac
e o r tighte n th e cap .
YES
Chec k th e fue l fil l ca p seal :
Chec k th e fue l fil l ca p seal .
Replace th e fue l fil l ca p (gra y col -
ored cap) .
NO
Is th e fue l fille r pip e damaged ?
Replace th e fue l fille r pipe .
NO
Fue l fil l ca p is OK . D o th e EVA Pcaniste r purg e valv e tes t (se epage 11-188 ).
YE S
YES
NO
Is th e fue l fil l ca p sea l missin g o rdamaged ?
Check th e fue l fil l cap :Chec k the fue l fill ca p (th e capmus t b e a Hond a ca p an d b e
tightene d a t leas t thre e "clicks " t o
properl y sea l th e system) .
Th
e MI L ha s bee n reporte d on .
DT C P145 6 is stored .
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Emission Contro l Syste m
Evaporativ e Emissio n (EVAP ) Control s (cont'd )
Dose th e valv e hol d vacuum ?
NO
Chec k th e EVA P caniste r purg evalve:1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e EVA P caniste r
purg e valv e 2 P connector .
3 . Chec k fo r continuit y betwee n
th e EVA P caniste r purg e valv e
2 P connecto r termina l No . 1
an d bod y ground .
Is ther e continuity ?
YES
Chec k fo r a shor t i n th e wir e (PC S
line) :
1 . Disconnec t th e PC M connecto r
A (26P) .2. Chec k fo r continuit y betwee n
th e EVA P caniste r purg e valv e
2 P connecto r termina l No . 1
an d bod y ground .
I s ther e continuity ?
NO
Substitut e a known-goo d PC M
an d rechec k (se e pag e 11-42 fo r
immobilize r information) . I f
symptom/indicatio n goe s away ,
replac e th e origina l PCM . EVA
P caniste r purg e valv e is OK .
D o the EVA P bypas s solenoi d
valv e tes t (se e pag e 11-189 ).
Replac e th e EVA P caniste r purg e
valve .
EVAP CANISTE R PURG EVALVE 2P CONNECTO R (C127 )
Repai r shor t i n th e wir e betwee n
PC M (A23 ) an d EVA P caniste r
purg e valve .
YES
NO
Wir e sid e o ffemal eterminal s
YES
Chec k th e EVA P caniste r purg evalve:1. Disconnec t th e vacuu m hos e
fro m th e EVA P caniste r purg e
valve , an d connec t a hos e an d
a vacuu m pum p t o th e EVA P
caniste r purg e valve .
2 . Tur n th e ignitio n switc h O N (II) .
3 . Appl y vacuu m to th e hose .
EVA
P caniste r purg e valv e test .
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