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Opel Frontera UE. Manual - part 193

6E1–70

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Engine Cranks But Will Not Run

Step

Action

Value(s)

Yes

Was the ”On–Board Diagnostic (OBD) System Check”
performed?

—

Go to Step 2

Go to OBD

System

Check

Use the Tech 2 and check for any DTC’s.

Are any DTC’s stored?

—

Go to

Applicable

DTC Table

Go to Step 3

Check the 15A ignition coil fuse, the 15A engine device
fuse, and the 15A ECM fuse.

Was a fuse blown?

—

Go to Step 4

Go to Step 5

Check for a short to ground and replace the fuse.

Is the action complete?

—

Verify repair

—

1. Ignition ON.
2. Use a grounded test lamp to verify that B+ is

available at the ignition coil fuse, the engine device
fuse, and the ECM fuse.

Was B+ available at the fuses?

—

Go to Step 7

Go to Step 6

Repair the open ignition feed circuit.

—

Go to Fuel

System

Electrical Test

Go to Fuel

System

Diagnosis

1. Disconnect the ignition secondary wire at the No.1.
2. Install a spark tester 5–8840–0279–0 at the end of

the disconnected ignition coil.

3. Clip the spark tester 5–8840–0279–0 to a good

ground (not near the battery).

4. Observe the spark 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 16

Go to Step 8

1. Disconnect the ignition module harness connector.
2. Check for an open or short circuit between the

ignition control module and the ECM?

Was a problem found?

—

Go to Step 9

Go to Step 10

Repair the faulty circuit.

—

Verify repair

—

1. Ignition ON.
2. Using a Digital Voltmeter (DVM) check the ignition

wire coil at the ignition module harness connector?

Was the voltage equal to the specified value?

B+

Go to Step 12

Go to Step 11

Repair the open circuit.

—

Verify repair

—

1. Ignition OFF.
2. With DVM, check for an open in the ground wire at

the ignition module harness connector.

Was the ground wire OK?

—

Go to Step 14

Go to Step 13

Repair the faulty wire.

—

Verify repair

—

6E1–71

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Engine Cranks But Will Not Run

(Cont'd)

Step

Yes

Value(s)

Action

Replace the ignition module, verify the repair.
Attempt to start the engine.

Is there still a problem?

—

Go to Step 15

Verify repair

Replace the ECM.

Is the action complete?

—

Verify repair

—

Use an ohmmeter to check the ignition coil primary
winding resistance.

Was the primary winding resistance approximately
equal to the specified value?

0.8–18

Go to Step 17

Go to Step 18

Use an ohmmeter to check the ignition coil secondary
winding resistance.

Was the secondary winding resistance equal to the
specified value?

9,000–12,000

Go to Step 19

Go to Step 18

Replace the ignition coil.

—

Verify repair

—

Test the resistance of the coil–to–spark plug secondary
ignition wire.

Was the resistance greater than the specified value?

10,000

per

foot

Go to Step 20

Go to Step 21

Replace the coil–to–spark plug secondary ignition wire
and any other secondary wires which exceed the
specified value.

Is there still a problem?

10,000

per

foot

Go to Step 21

Verify repair

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
excessing fouling?

—

Correct the

fouling

condition

Go to Step 30

Verfiy repair.
Attempt to start the engine.

Is there still a problem?

—

Go to Step 23

Go to Step 22

1. Ignition OFF, install a fuel pressure gauge at the test

fitting on the fuel supply line in the engine
compartment.

CAUTION: Use a shop cloth to absorb any fuel
leakage while making the connection.

2. Check the engine and observe the fuel pressure.

Is the fuel pressure within the specified values, and
does it hold steady for 2 seconds?

285–375 kPa

(43–55 psi)

Go to Step 25

Go to Step 24

Is any fuel pressure indicated?

—

Go to Fuel

System

Electrical Test

Go to Fuel

System

Diagnosis

6E1–72

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Engine Cranks But Will Not Run

(Cont'd)

Step

Yes

Value(s)

Action

1. Raise the vehicle and disconnect the CKP sensor

harness.

2. Ignition ON.
3. With a test light to ground, probe the CKP ignition

feed harness terminal.

Did the light illuminate?

—

Go to Step 26

Go to Step 27

1. Ignition ON.
2. At the CKP harness connector, connect a test lamp

between the ignition and ground terminals.

Did the lamp illuminate?

—

Go to Step 28

Go to Step 29

Check the CKP High circuit between the sensor and the
ECM for a short to ground or open circuit.

Was a problem found?

—

Verify repair

Go to Step 30

Replace the CKP position sensor.

Is there still a problem?

—

Go to Step 31

—

Check the CKP Low circuit between the sensor and the
ECM for: an open circuit, a short to ground, or short to
voltage.

Was the problem found?

—

Verify repair

Go to Step 30

Replace the ECM.

—

Verify repair

—

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 32

To diagnose the following conditions, refer to Engine
Mechanical:

Slipped camshaft drive belt.

Leaking or sticky valves or rings.

Excessive valve deposits.

Loose or worn rocker arms.

Weak valve springs

Leaking head gasket.

Is the action complete?

—

Verify repair

—

6E1–73

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

FUEL SYSTEM ELECTRICAL TEST

D06RX111

Circuit Description

When the ignition switch is first turned ON, the powertrain
control module (ECM) energizes the fuel pump relay
which applies power to the in–tank fuel pump. The fuel
pump relay will remain ON as long as the engine is
running or cranking and the ECM is receiving 58X
crankshaft position pulses. If no 58X crankshaft position
pulses are present, the ECM de–energizes the fuel pump
relay within 2 seconds after the ignition is turned ON or the
engine is stopped.
The fuel pump delivers fuel to the fuel rail and injectors,
then to the fuel pressure regulator. The fuel pressure
regulator controls fuel pressure by allowing excess fuel to
be returned to the fuel tank. With the engine stopped and
ignition ON, the fuel pump can be turned ON by using a
command by the Tech 2.

Diagnostic Aids

An intermittent may be caused by a poor connection,
rubbed–through wire insulation, or a wire broken inside
the insulation. Check for the following items:

Poor connection or damaged harness – Inspect the
ECM harness and connectors for improper mating,
broken locks, improperly formed or damaged
terminals, poor terminal–to–wire connection, and
damaged harness.

Test Description

Number(s) below refer to the step number(s) on the
Diagnostic Chart:
2. If the fuel pump is operating but incorrect pressure

is noted, the fuel pump wiring is OK and the ”Fuel
System Pressure Test” chart should be used for
diagnosis.

Content .. 191 192 193 194 ..