Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 876

6E–528

TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

Vehicle Speed Sensor (VSS)

Removal Procedure

CAUTION: The VSS is located on the right side of
the transfer case just ahead of the rear propeller
shaft and very close to the exhaust pipes for 4WD
and on the extension cover for 2WD.  Be sure that the
exhaust pipes are cool enough to touch before trying
to remove the VSS.  If the pipes are hot, you could be
burned.

1. Disconnect the negative battery cable.
2. Disconnect the VSS electrical connector.

TS23748

3. Remove the bolt and the clamp securing the VSS in

place.

IMPORTANT:

Have a container ready to catch any fluid

that leaks out when the VSS is removed from the transfer
case for 4WD and on the extension cover for 2WD.

TS23780

4. Remove the VSS from the transfer case by wiggling it

slightly and pulling it straight out.

Inspection Procedure

1. Inspect the electrical connector for signs of corrosion

or warping.  Replace the VSS if the electrical
connector is corroded or warped.

2. Inspect the VSS driven gear for chips, breaks, or worn

condition.  Replace the VSS if the driven gear is
chipped, broken or worn.

3. Inspect the O-ring for wear, nicks, tears, or

looseness.  Replace the O-ring if necessary.

Installation Procedure

1. Install the VSS in the transfer case with the notch for

the connector facing the rear.

2. Secure the VSS in place with the clamp and the bolt.

Tighten

D

Tighten the bolt to 16 N·m (12 lb ft.).

TS23780

3. Connect the VSS electrical connector.

TS23748

4. Check the transfer case oil level.  Add fluid if

necessary.

5. Connect the negative battery cable.

6E–529

TROOPER 6VE1 3.5L 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–530

TROOPER 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–531

TROOPER 6VE1 3.5L 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%