Opel Frontera UBS. Manual - part 2366

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

6E–502

6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS

3. Disconnect the fuel hose from the fuel filter on the

engine side.

4. Disconnect the fuel hose from the fuel filter on the fuel

tank side.

5. Remove the bolt on the fuel filter holder.

041RW003

Legend

(1) Fuel Hose
(2) Fuel Filter Fixing Bolt
(3) Fuel Filter

6. Remove the fuel filter.

Inspection Procedure

1. Replace the fuel filter when the following occur:

D

Fuel leaks from the fuel filter body.

D

The fuel filter body is damaged.

D

The fuel filter is clogged with dirt or sediment.

2. If the drain hole is clogged, clean the drain.

060R200242

Installation Procedure

1. Install the fuel filter in the correct direction.
2. Install the bolt on the fuel filter holder.

Tighten

D

Tighten the screws to 20 N·m (14 lb ft.).

3. Connect the fuel hose on the engine side.
4. Connect the fuel hose on the fuel tank side.

041RW003

Legend

(1) Fuel Hose
(2) Fuel Filter Fixing Bolt
(3) Fuel Filter

5. Install the fuel filler cap.

060R200219

6. Connect the negative battery cable.

6E–503

6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

Fuel Gauge Unit

Removal Procedure

Refer to 

Fuel Tank section.

060R200245

Fuel Injectors

Removal Procedure

NOTE: If the fuel injectors are leaking, the engine oil may
be contaminated with fuel.  Check the oil for signs of
contamination and change the oil and the filter if
necessary.

NOTE: Use care in removing the fuel injectors in order to
prevent damage to the fuel injector electrical connector
pins or the fuel injector nozzles.  The fuel injector is an
electrical component and should not be immersed in any
type of cleaner as this may damage the fuel injector.

IMPORTANT:

Fuel injectors are serviced as a complete

assembly only.

1. Disconnect the negative battery cable.
2. Remove the common chamber.  Refer to 

Common

Chamber in Engine Mechanical section.

3. Remove the fuel rail.  Refer to 

Fuel Rail section.

014RW164

4. Remove the injector retainer clip. 

040RY00001

5. Remove the fuel injector assembly.
6. Remove the O-ring from the fuel injector.
7. Remove the O-ring backup from the fuel injector .

Inspection Procedure

1. Inspect the O-rings for cracks or leaks.
2. Replace worn or damaged O-rings.
3. Lubricate the new O-rings with engine oil before

installation.

Installation Procedure

1. Install the O-ring backup on the fuel injector.
2. Install the new O-ring on the fuel injector.