2001 HONDA PASSPORT engine

equipmen
t o n th e vehicl e whe n it
wa s shippe d fro m th e factory . B e
sur e t o provid e thi s informatio n t o
you r authorize d Hond a deale r
whe n it i s necessar y t o orde r

parts .
Vehicl
e Loadin g
Vehicl e Loadin g Informatio n

Th e component s o f you r vehicl e
ar e designe d to provid e
satisfactor y servic e onl y i f th e
vehicl e is no t loade d in exces s o f
eithe r th e Gros s Vehicl e Weigh t
Ratin g (GVWR ) o r th e maximu m
fron t an d rea r Gros s Axl e Weigh t
Rating s (GAWRs) . Thes e rating s
ar e liste d o n th e Vehicl e
Certificatio n Labe l locate d o n th e
lef t doo r loc k pillar .
You r Hond a deale r ca n advis e yo u
o f th e prope r loadin g condition s
fo r you r vehicle . Th e us e o f
selecte d heavie r suspensio n
component s fo r adde d durabilit y
purpose s doe s no t increas e an y o f
th e weigh t rating s printe d o n th e
Vehicl e Certificatio n Label .
Maximu
m Fron t an d Rea r
Axl e Weigh t
Th e weigh t o f th e carg o loa d mus t
b e properl y distribute d ove r bot h
th e fron t an d rea r axles . Th e
Certificatio n Labe l show s th e
maximu m weigh t tha t th e fron t
axl e (fron t GAWR ) ca n carry . I t
als o show s th e maximu m weigh t
tha t th e rea r axl e (rea r GAWR ) ca n
carry . Th e GVW R represent s th e
maximu m permissibl e loade d
weigh t o f th e vehicl e an d take s
int o accoun t th e engine ,
transmission , frame , springs ,
brake , axle , an d tir e capabilities .
Actua l load s o n th e fron t an d rea r
axle s ca n onl y b e determine d b y
weighin g th e vehicle . Thi s ca n b e
don e a t highwa y weigh t station s
o r othe r suc h commercia l weig h
stations . Consul t you r Hond a
deale r fo r assistance . Th e carg o
Technica l Dat a

maintai
n them . Thi s sectio n
summarize s ho w th e emission s
control s work . Schedule d
maintenanc e is o n pag e 204 .
Crankcas e Emission s
Contro l Syste m
You r vehicl e ha s a Positiv e

Crankcas e Ventilatio n System .

Thi s keep s gasse s tha t buil d u p in
th e engine' s Crankcas e fro m goin g
int o th e atmosphere . Th e Positiv e

Crankcas e Ventilatio n valv e route s

the m fro m th e crankcas e bac k t o
th e intak e manifold . The y ar e the n
draw n int o th e engin e an d burned .
Evaporativ e Emission s
Contro l Syste m
A s gasolin e evaporate s i n th e fue l
tank , a n evaporativ e emissio n
contro l caniste r fille d wit h
charcoa l adsorb s th e vapor . I t i s
store d in thi s caniste r whil e th e engin
e i s off . Afte r th e engin e is
starte d an d warme d up , th e vapo r
i s draw n int o th e engin e an d
burne d durin g driving .
Onboar d Refuelin g Vapo r
Recover y
Th e Onboar d Refuelin g Vapo r
Recover y (ORVR ) syste m capture s
th e fue l vapor s durin g refueling .
Th e vapor s ar e adsorbe d in a
caniste r fille d wit h activate d
carbon . Whil e driving , th e fue l
vapor s ar e draw n int o th e engin e
an d burne d off .
Exhaus t Emission s Control s
Th e exhaus t emissio n control s
includ e fou r systems : Fue l
Injection , Ignitio n Timin g Control ,
Exhaus t Ga s Recirculation , an d
Three-Wa y Catalyti c Converter .
Thes e fou r system s wor k togethe r
t o contro l th e engine' s combustio nan
d minimiz e th e amoun t o f HC ,
CO , an d NO x tha t come s ou t th e
tailpipe . Th e exhaus t emissio n
contro l system s ar e separat e fro m

th e crankcase and evaporativ e

emissio n contro l systems .

Fuel Injection System
Th e Fue l Injectio n Syste m use s
sequentia l multipor t fue l injection .
I t ha s thre e subsystems : Ai r
Intake , Engin e Control , an d Fue l
Control . Th e Engin e Contro l
Modul e (ECM ) use s variou s
sensor s t o determin e ho w muc h
ai r i s goin g int o th e engine . I t the n
control s ho w muc h fue l t o injec t
unde r al l operatin g conditions .
Ignition Timing Control System
Thi s syste m constantl y adjust s th e
ignitio n timing , reducin g th e amoun t
o f HC , C O an d NO x produced .
Owne r Assistanc e

Exhaust
Gas Recirculation (EGR)

System

Th e Exhaus t Ga s Recirculatio n
(EGR ) syste m take s som e o f th e
exhaus t ga s an d route s i t bac k int o
th e intak e manifold . Addin g
exhaus t ga s t o th e air/fue l mixtur e
reduce s th e amoun t o f NO x
produce d whe n th e fue l i s burned .

Three-Way Catalytic Converter

Th e Three-Wa y Catalyti c
Converte r i s i n th e exhaus t
system . Throug h chemica l
reactions , i t convert s HC , CO , an d
NO x i n th e engine' s exhaus t t o
carbo n dioxid e (CO 2), dinitroge n
(N 2), an d wate r vapor . Replacemen
t Part s
Th e emission s contro l system s ar e
designe d an d certifie d t o wor k
togethe r i n reducin g emission s t o
level s tha t compl y wit h th e Clea n
Ai r Act . T o mak e sur e th e
emission s remai n low , yo u shoul d
us e onl y ne w Genuin e Hond a
replacemen t part s o r thei r
equivalen t fo r repairs . Usin g
lowe r qualit y part s ma y increas e
th e emission s fro m you r vehicle .
Th e emission s contro l system s ar e
covere d b y warrantie s separat e
fro m th e res t o f you r vehicle .
Rea d you r warrant y manua l fo r
mor e information . Th
e tire s o n you r vehicl e mee t al l
U.S . Federa l Safet y
Requirements . Al l tire s ar e als o
grade d fo r treadwear , traction , an d

temperatur e performanc e

accordin g to Departmen t o f
Transportatio n (DOT ) standards .
Th e followin g explain s thes e

gradings .

Unifor m Tir e Qualit y

Gradin g

Qualit y grade s ca n b e foun d
wher e applicabl e o n th e tir e
sidewal l betwee n th e trea d
shoulde r an d th e maximu m
sectio n width . Fo r example :
Treadwea r 20 0
Tractio n A A
Temperatur e A
Al l passenge r ca r tire s mus t
confor m to Federa l Safet y
Requirement s in additio n to thes e

grades .

Owne r Assistanc e

DO
T Tir e
Qualit y Gradin g

Crossin
g a Strea m

Before driving throug h water , sto p
an d mak e sur e that : Th
e wate r i s neve r dee p enoug h
t o cove r you r whee l hubs , axle s
o r exhaus t pipe . Yo u coul d
stall , an d no t b e abl e to restar t
th e engine . Th e wate r coul d
als o damag e importan t vehicl e

components .
Th
e wate r i s no t flowin g to o
fast . Dee p rushin g wate r ca n
swee p yo u downstream . Eve n
ver y shallo w rushin g wate r
ca n was h th e groun d fro m
unde r you r tire s an d caus e yo u
t o los e tractio n an d possibl y
rol l over . Th
e bank s ar e slope d s o yo u
ca n driv e out . Th
e bank s an d surfac e unde r
th e wate r provid e goo d
traction . Th e wate r ma y hid e
hazard s suc h a s rocks , holes , o r

mud .

I f yo u decid e it' s saf e t o driv e
throug h water , choos e a lo w gea r
an d suitabl e speed , the n procee d
withou t shiftin g o r changin g
speed . A t fas t speeds , wate r ca n
mor e easil y splas h o n you r
ignitio n system , whic h coul d
mak e th e engin e stall .
Afte r drivin g throug h water , tes t
you r brakes . I f th e brake s go t wet ,
driv e slowl y whil e gentl y
pumpin g th e brake s unti l the y
operat e normally .
Off-Roa d Drivin g Informatio n