Isuzu Trooper (1998-2002 year). Service manual — part 532
6E–498
6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS
Air Cleaner/Air Filter
Removal Procedure
1. Loosen the clamp between the air cleaner lid and the
mass air flow sensor.
060R200240
2. Release the four latches securing the lid to the air
cleaner housing.
3. Remove the air cleaner lid.
4. Remove the air filter element.
5. Remove the retaining bolts and the air cleaner
housing from the vehicle.
060R200220
Legend
(1) Air Cleaner Lid
(2) Air Filter Element
(3) Air Cleaner Housing
Installation Procedure
1. Install the air cleaner housing in the vehicle with the
retaining bolts.
2. Install the air filter element in the air cleaner housing.
3. Install the air cleaner lid on the MAF sensor and the air
cleaner housing.
060R200241
Legend
(1) Air Cleaner Lid
(2) Air Filter Element
(3) Air Cleaner Housing
(4) Mass Air Flow Sensor
4. Tighten the clamp and secure the four latches
between the lid and the air cleaner housing.
Common Chamber
Removal and Installation Procedure
Refer to Common Chamber in Engine Mechanical
section.
6E–499
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Accelerator Pedal Replacement
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the electrical harness from the
accelerator position sensor.
060R200233
Legend
(1) Accelerator Position Sensor
(2) Accelerator Pedal Assembly
3. Remove the two screws from the accelerator pedal
assembly.
060R200234
4. Remove the accelerator pedal assembly from the
bulkhead.
Installation Procedure
1. Install the accelerator pedal assembly on the
bulkhead.
2. Install the two screws to the accelerator pedal
assembly.
Tighten
D
Tighten the screws to 22 N·m (16 lb ft.).
060R200234
3. Connect the electrical harness to the accelerator
position sensor.
060R200233
Legend
(1) Accelerator Position Sensor
(2) Accelerator Pedal Assembly
4. Install the negative battery cable.
6E–500
6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS
Accelerator Position Sensor
Replacement
CAUTION: Remove the Accelerator (A) pedal
assembly as a unit to have it serviced. Do not remove
the Accelerator Position (AP) sensor on the A pedal.
If the AP sensor is removed for emergency cause,
refer to following items as necessary.
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the electrical harness from the AP sensor.
060R200233
Legend
(1) AP Sensor
(2) A Pedal Assembly
3. Remove the AP sensor.
060R200235
Legend
(1) AP Sensor
(2) AP Screw
4. Remove all grease residues from the Accelerator
Position Sensor mounting
5. Clean all connector pins with contact cleaner. Use
LOCTITE
/ Permatex Electrical Contact Cleaner, or
equivalent.
NOTE: Do not use brake cleaner or carburetor spray.
Installation Procedure
1. Install the accelerator position (AP) sensor to bolts
with accelerator (A) pedal.
2. Connect the connector to AP sensor.
3. Install the negative battery cable.
Accelerator Position Sensor
Adjustment
AP sensor is controled three maltiple control system, and
adjust the idle position and WOT position are between A
and B for AP sensor 1, AP sensor 2, and AP sensor 3.
Refer to
“How to adjust for AP sensor”.
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the electrical harness from the AP sensor.
How To Adjust For AP Sensor
1. Connect the Tech 2 to DLC on vehicle.
2. Ignition “ON,” engine “OFF.”.
3. Display the APS date list. Check the following item for
AP position (%).
AP position (%)
Idle position A
WOT position B
APS1
11 – 15%
85 – 89%
APS2
85 – 89%
11 – 15%
APS3
85 – 89%
32 – 36%
6E–501
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
060RY00305
4. If the problem was found, adjust as necessary.
101RY00011
Fuel Filler Cap
General Description
The fuel filler cap includes a vacuum valve and a pressure
valve.
If high vacuum or high pressure occurs in the fuel tank,
each valve works to adjust the pressure in order to
prevent damage to the tank.
TS23767
Inspection Procedure
NOTE: Replace the fuel filler cap with the same type of
filler cap that was originally installed on the vehicle.
D
Check the seal ring in the filler cap for any abnormality
and for seal condition.
D
Replace the filler cap if any abnormality is found.
Fuel Filter
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the fuel filler cap.
060R200219
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