Opel Frontera UE. Manual - part 1469

6E–91

6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

Engine Cranks But Will Not Run

  (Cont'd)

Step

No

Yes

Value(s)

Action

16

Repair the open secondary ground circuit.

Is the action complete?

—

Verify repair

—

17

1. Test the fuel for contamination.
2. If a problem is found, clean the fuel system and

correct the contaminated fuel condition as
necessary. Replace the fuel filter and replace any
injectors that are not delivering fuel (see Injector
Balance Test).

Was a problem found?

—

Verify repair

Go to 

Step 18

18

1. Remove any ignition coil and install a spark tester at

the spark plug end of the coil.

2. Observe the tester while the engine is cranking.

Was a crisp, blue spark observed? Only one or two
sparks followed by no result is considered the same as
“No Spark”.

—

Go to 

Step 20

Go to 

Step 19

19

Replace the ignition coil, and return to Step 19 to test
the remaining coils.

Is the action complete?

—

Verify repair

—

20

Repeat Step 19 for each coil. Remove only one coil at a
time, and reinstall each coil on its spark plug after
testing, but do not refasten coils with screws at this
time.

After all coils have passed the spark test, does the
engine start?

—

Refasten all

coils with

their screws

Go to 

Step 21

21

1. Remove the spark plugs from all cylinders.
2. Visually inspect the spark plug electrodes.
3. Replace any spark plugs with loose or missing

electrodes or cracked insulators.

Did your inspection reveal any spark plugs exhibiting
excessive fouling?

—

Correct the

fouling

condition

Go to 

Step 22

22

Refer to 

Engine Mechanical Diagnosis to diagnose the

following conditions:

D

Faulty or incorrect camshaft drive belts

D

Leaking or sticky valves or rings

D

Excessive valve deposits

D

Weak valve springs

D

Incorrect valve timing

D

Leaking head gasket

Is the action complete?

—

Verify repair

Go to 

Step 24

23

Observe the “Engine Speed” data display on the Tech 2
while cranking the engine.

Is the engine RPM indicated?

—

Go to 

Step 24

Go to 

Step 33

SECTION

6E–92

6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

Engine Cranks But Will Not Run

  (Cont'd)

Step

No

Yes

Value(s)

Action

24

1. Disconnect the 7-pin gray connector at the rear of

the air filter beneath the point where the air duct
attaches to the MAF sensor.

2. Ignition “ON”.
3. Using a test light connected to ground, probe the

ignition terminal at the PCM (female) side of the
7-pin connector.

Is the test light “ON”?

—

Go to 

Step 25

Go to 

Step 31

25

1. At the PCM (female) side of the connector, connect

a test light between the ignition + terminal and one
of the injector driver circuits at the same connector.

2. Ignition “ON”.
3. Observe the test light, and repeat the test for each

injector driver circuit.

Did the test light stay on when checking any of the 6
injector driver circuits?

—

Go to 

Step 26

Go to 

Step 28

26

1. Ignition “OFF”, disconnect the PCM.
2. Ignition “ON”, observe the test light.

Is the test light “ON”?

—

Go to 

Step 27

Go to 

Step 32

27

Locate and repair the short to ground in the injector
driver circuit.

Is the action complete?

—

Verify repair

—

28

1. Using the same test location as in step 26, connect

a test light between the ignition terminal and one of
the driver circuits.

2. Crank the engine and observe the test light.
3. Repeat for each injector driver circuit.

Did the light blink during the test for each circuit?

—

Go to 

Step 30

Go to 

Step 29

29

Check for an open injector driver circuit.

Was a problem found?

—

Verify repair

Go to 

Step 32

30

1. At the injector (male) side of the gray connector

mentioned in step 25, connect an ohmmeter
between the ignition pin and one of the driver circuit
pins.

2. Check for continuity in the circuit.
3. Repeat for each injector circuit. The readings

should be approximately equal to the specified
value for injector resistance.

Was a problem found?

12.5 

W

Verify repair

Go to 

Step 7

31

Repair the ignition feed circuit.

Is the action complete?

—

Verify repair

—

SECTION

6E–93

6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

Engine Cranks But Will Not Run

  (Cont'd)

Step

No

Yes

Value(s)

Action

32

Replace the PCM.

IMPORTANT: The replacement PCM must be
programmed.

Refer to 

ON-Vehicle Service in Power Control Module

and Sensors for procedures.

And also refer to latest Service Bulletin.

Check to see if the latest software is released or not.

And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.

Is the action complete?

—

Verify repair

—

33

1. Raise the vehicle and disconnect the CKP sensor

harness.

2. Ignition “ON”.
3. With a test light to ground, probe the harness

ignition feed terminal.

Did the light illuminate?

—

Go to 

Step 35

Go to 

Step 34

34

Check the ignition feed wire between the sensor and
the PCM for a short to ground or open circuit.

Is the action complete?

—

Verify repair

—

35

1. Ignition “ON”.
2. At the CKP harness connector, connect a test light

between the ignition and ground terminals.

Did the light illuminate?

—

Go to 

Step 37

Go to 

Step 36

36

Check the sensor ground circuit for an open or short to
voltage.

Is the action complete?

—

Verify repair

—

37

Check the signal circuit between the sensor and the
PCM for a short to ground, short to voltage, or an open.

Was a problem found?

—

Verify repair

Go to 

Step 38

38

Replace the CKP position sensor.

Is the action complete?

—

Verify repair

Go to 

Step 32

SECTION

6E–94

6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

Fuel System Electrical Test

060R100121

SECTION