ON-VEHICLE INSPECTION OF MPI COMPONENTS · 80

ON-VEHICLE INSPECTION OF MPI COMPONENTS · 80

1998 · FUEL [13] · страница 80 из 104 · Открыть оригинал PDF ↗

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Hint 3: If there iscylinder for which the idling
condition does not change when, during
idling; the fuel injection 0f the injectors is
cut off in sequence, check that cylinder as
described below:

Check the injector and harness.
(2)Check the spark plugs and the high-

tension cable.

(3) Check the compression pressure

Hint 4: If the injector activation time deviates from
the standard value even though the results
of the checking of the injector's harness
and of the injector itself are normal, the
cause may be presumed to be one of the
following:

(1) Incompletecombustionwithin the
cylinder:

(Malfunction of the spark plugs, the
ignition coil, the compression pressure,
etc )

2Improper adhesion of EGR valve seat:
3) Increased engine resistance.

Проверка

Using MUT-II

Таблица в оригиналеТаблица: оригинал страницы 80
Распознанный текст таблицы — требует сверки с оригиналом
FunctionItem No:Data DisplayCheck conditionsEngine coolant
temperature %
Standard value ms
Data reading41Activation
time*1
Engine crankingWhen 0*215.5
19
When 2038
46.5
When 8010 - 12
FunctionItem No.Data DisplayCheck conditionsEngine condition
rlmin
Standard value ms
Data reading41Activation
time*3
Engine coolant temper-
ature: 89
95*C
700 (idling)2.6 _ 3.8
Lamps and acces-
sories: OFF
Transmission: neutral
2,5002.3 -3.5
(P range for vehicles
with AT)
Steering wheel: neutral
position
When raced
suddenly
Increases

NOTE

Indicates the injector-activation time when the power source voltage is 11 V and the cranking speed is
250 rlmin or less

"2At a coolant temperature of 0PC, there is synchronous injection for all six cylinders
*3.or
Fora new vehicle [driven approximately 500 kmless)] the injector-activation may be about ten
percent longer than indicated above

Таблица в оригиналеТаблица: оригинал страницы 80
Распознанный текст таблицы — требует сверки с оригиналом
FunctionItem NoDrive contentCheck conditionNormal condition
Actuator test01No.
injector shut off
Engine: Idling after warm-Idle state t0 change further
02No. 2 injector shut offup (Shut off the injectors in
sequence during after
(becoming less stable or
stalling)
03No. 3 injector shut offengine warm-up, check the
idling condition)
04No. 4 injector shut off
05No. 5 injector shut off
06No. 6 injector shut off
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