2000 MITSUBISHI MONTERO Service Repair Manual

N
orm alco ndit io n W
hen cu rre ntis
f lo w in g V
acu um le aks (V acu um is m ain ta in ed when
n ip ple B is plu gged) W
hen cu rre ntis not
f lo w in g V
acu um is m ain ta in ed N
orm alco ndit io n W
hen cu rre ntis
f lo w in g V
acu um le aks (V acu um is m ain ta in ed when
n ip ple D is plu gged) W
hen cu rre ntis not
f lo w in g V
acu um le aks (V acu um is m ain ta in ed when
n ip ple E is plu gged) <
E G R so le n oid valv e No.2 > D
C
E

V
olt a ge V I
d le posit io n 0
.8 -1.0 F
ully open 3
.7 -4.9 M
D998464 W
hit e
R
ed B
la ck B
lu e E
ngin e co ola nt te m pera tu re gauge unit
( b uilt - in engin e co ola ntte m pera tu re se nso r)
w
ww.W ork sh opM an uals .c o .u k
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k

R
esis ta nce (k W ) 0 7
.7 -9.5 2
0 2
.9 -3.6 4
0 1
.3 -1.7 8
0 0
.2 6 -0.3 5

C
HEC K AT TH E GLO W &EG R CO NTR O L UNIT
T E R M IN AL VO LTA G E CHEC K CHART
G lo w &EG R Contr o l Unit Connecto r Te rm in al Arra n gem en t C
heck it e m C
heck co ndit io n (E ngin e co ndit io n) N
orm alco ndit io n 3 E
G R so le noid va lv e I
g nit io n sw it c h : O N B
atte ry vo lt a ge N
o.1 W
hile engin e is id le afte r havin g warm ed up, su ddenly
d epre ss th e acce le ra to r pedal. M
om enta rily in cre ase s 6 L
eve r posit io n I
g nit io n sw it c h :O N S
et th ro ttle le ve r to id le posit io n 0
.8 -1.0 V s
e nso r F
ully open th ro ttle le ve r 3
.7 -4.9 V 7 S
enso r im pre sse d
v o lt a ge I
g nit io n sw it c h : O N 4
.8 -5.2 V 1
6 E
G R so le noid va lv e I
g nit io n sw it c h : O N B
atte ry vo lt a ge N
o.2 W
hile engin e is id le afte r havin g warm ed up, su ddenly
d epre ss th e acce le ra to r pedal. M
om enta rily decre ase s C
heck it e m N
orm alco ndit io n (C heck co ndit io n) 3
-1 E
G R so le noid va lv e No.1 3
6 -44 W (A t20_C ) 5
-Body earth E
ngin e co ola nt te m pera tu re se nso r 7
.7 -9.5 kW (C oola nt te m pera tu re at 0_C ) 2
.9 -3.6 kW (C oola nt te m pera tu re at 20_C ) 1
.3 -1.7 kW (C oola nt te m pera tu re at 40_C ) 0
.2 6 -0.3 5 kW (C oola nt te m pera tu re at 80_C ) 1
1 -24 E
ngin e sp eed se nso r 1
.3 -1.9 kW E
G R so le noid va lv e No.2 3
6 -44 W (A t20_C )

ENGINE AND EMISSION CONTROL -Emission Control System
<4M4-Vehicles with EGR>17-52
EMISSION CONTROL SYSTEM <4M4-VEHICLES WITH
EGR>
GENERAL INFORMATION
The electronically-controlled EGR system and the
fuel injection timing control system (load timer)
reduce the level of exhaust gases (NO
x).
ItemsNameSpecification
Exhaust emission
control systemExhaust gas recirculation system
DEGR valve
DEGR solenoid valve No.1
DEGR solenoid valve No.2Electronically-controlled EGR system
Single type
Duty cycle solenoid valve
ON-OFFsolenoid valve
SERVICE SPECIFICATIONS
ItemsStandard value
EGR solenoid valve No.1/No. 2 resistance (at 20_C)W36 - 44


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E
G R so le n oid valv e No.1 1
7-5 3 E
XH AUST GAS REC IR CULA TIO N (E G R) SYSTE M
G EN ER AL IN FO RM ATIO N
T he ele ctr o nic a lly -c o ntr o lle d EG R syste m co nsis ts
o f an EG R va lv e , va cu um pum p, EG R so le noid
v a lv e s No. 1 and No. 2, glo w &EG R co ntr o l unit
a nd va rio us se nso rs .
T he EG R va lv e is co ntr o lle d by th e negativ e
p re ssu re in sid e th e va lv e , whic h is co ntr o lle d by
E G R so le noid va lv e s No. 1 and No. 2. T
he EG R so le noid va lv e s No.1 and No. 2 are
o ptim ally co ntr o lle d by th e glo w &EG R co ntr o l
u nit in re sp onse to th e engin e opera tio n co ndit io ns,
b ase d on data in put fr o m each of th e se nso rs .
I n th is way, th e EG R is co ntr o lle d to re duce NO
x
e m is sio ns while main ta in in g good engin e
p erfo rm ance .
S YSTE M DIA G RAM

E
G R va lv e co ndit io n I
d lin g wit h out any lo ad O
pen S
udden ra cin g C
lo se d (D ia phra gm lo w ers ) N
orm alco ndit io n W
hen cu rre nt is
f lo w in g V
acu um le aks (V acu um is m ain ta in ed when
n ip ple A is plu gged). W
hen cu rre ntis not
f lo w in g V
acu um le aks (V acu um is m ain ta in ed when
n ip ple B is plu gged). N
orm alco ndit io n W
hen cu rre ntis
f lo w in g V
acu um le aks (V acu um is m ain ta in ed when
n ip ple C is plu gged). W
hen cu rre ntis not
f lo w in g V
acu um is m ain ta in ed. <
E G R so le n oid valv e No.2 >
w
ww.W ork sh opM an uals .c o .u k
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k