Opel Frontera UE. Manual - part 235

6E1–238

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

HARD START SYMPTOM

DEFINITION:
Engine cranks, but does not start for a long time. Does
eventually run, or may start but immediately stalls.

Step

Action

Value(s)

Yes

No

1

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

—

Go to Step 2 

Go to OBD

System

Check 

2

1. Perform a bulletin search.
2. If a bulletin that addresses the symptom is found,

correct the condition as instructed in the bulletin.

Was a bulletin found that addresses the symptom?

—

Verify repair

Go to Step 3 

3

Was a visual/physical check performed?

—

Go to Step 4 

Go to Visual /

Physical

Check 

4

Check engine coolant temperature (ECT) sensor for
shift in value.

1. After 8 hours with the hood up and  the engine not

running, connect the Tech 2.

2. Ignition ON, engine not running.
3. Using the Tech 2, compare Engine Coolant

Temperature to Intake Air Temperature.

Are ECT and IAT within the specified value of each
other?

±

 5

°

C (

±

 9

°

F)

Go to Step 8 

Go to Step 5 

5

1. Using a Tech 2, display the engine coolant

temperature and note the value.

2. Check the resistance of the engine coolant

temperature sensor.

3. For resistance specifications, refer to Temperature

vs. Resistance chart in DTC P0118. 

Is the actual resistance near the resistance value in the
chart for the temperature that was noted?

—

Go to Step 7 

Go to Step 6 

6

Replace the ECT sensor.

Is the action complete?

—

Verify repair

—

7

Locate and repair high resistance or connection in the
ECT signal circuit or the ECT signal circuit or the ECM
sensor ground.

—

Verify repair

—

8

Check for a faulty, plugged, or incorrectly installed PCV
valve.

Was a problem found?

—

Verify repair

Go to Step 9 

9

Visually/Physically inspect the secondary ignition
wires. Check for the following conditions:

D

Verify that all ignition wire resistance are less than
the specified value.

D

Verify that ignition wires are correctly routed to
eliminate cross–firing.

D

Verify that ignition wires are not arcing to ground.
Spraying the secondary ignition wires with a light
mist of water may help locate an intermittent
problem.

Was a problem found?

22.4 k 

W

Verify repair

Go to Step 10

6E1–239

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Step

No

Yes

Value(s)

Action

10

Check for proper ignition voltage output with a spark
tester5-8840-0383-0.

Was a problem found?

—

Verify repair

Go to Step 11

11

1. Remove the spark plugs and check for gas or oil

fouling cracks, wear, improper gap, burned
electrodes, heavy deposits, or improper heat range.

2. If spark plugs are fouled, the cause of fouling must

be determined before replacing the spark plugs.

Was a problem found?

—

Verify repair

Go to Step 12

12

Check for a loose ignition control module ground.

Was a problem found?

—

Verify repair

Go to Step 13

13

1. Check the ignition coil secondary resistance.
2. Replace the coil if it is not within the specified range

of resistance.

Did the coil require replacement?

9 k

W

–12 k

W

Verify repair

Go to Step 14

14

Check IAC operation. Perform the procedure in the
diagnostic chart DTC P0506, Step 6.

Was a problem found?

—

Verify repair

Go to Step 15

15

Check for water or alcohol contaminated fuel.

Was a problem found?

—

Verify repair

Go to Step 16

16

Perform the procedure in Fuel System Pressure Test to
determine if there is a problem with fuel delivery.

Was a problem found?

—

Verify repair

Go to Step 17

17

Check for the following engine mechanical problems
(refer to Engine Mechanical):

D

Low compression

D

Leaking cylinder head gaskets

D

Worn camshaft

D

Camshaft drive belt slipped or stripped

Was a problem found?

—

Verify repair

Go to Step 18

18

1. Review all diagnostic procedures within this table.
2. If all procedures have been completed and no

malfunctions have been found, review/inspect the
following:

D

Visual/physical inspection

D

Tech 2 data

D

Freeze Frame data/Failure Records buffer

D

All electrical connections within a suspected
circuit and/or system

Was a problem found?

—

Verify repair

Contact

Technical

Assistance

6E1–240

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

SURGES AND/or CHUGGLES SYMPTOM

DEFINITION:
Engine power variation under steady throttle or cruise.
Feels like the vehicle speeds up and slows down with no
change in the accelerator pedal.

Step

Action

Value(s)

Yes

No

1

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

—

Go to Step 2 

Go to OBD

System

Check 

2

1. Perform a bulletin search.
2. If a bulletin that addresses the symptom is found,

correct the condition as instructed in the bulletin.

Was a bulletin found that addresses the symptom?

—

Verify repair

Go to Step 3 

3

Was a visual/physical check performed?

—

Go to Step 4 

Go to Visual /

Physical

Check 

4

Be sure that the driver understands A/C compressor
operation as explained in the owner’s manual. Inform
the customer how the A/C clutch operate.

Is the customer experiencing a normal condition?

—

System OK

Go to Step 5 

5

Check the fuel control Heated Oxygen Sensor
(HO2S1). When monitored on the Tech 2, the H02S1
should respond quickly to different throttle positions. If
it doesn’t check for silicon or other contaminants from
fuel or use of improper RTV sealant. The sensors may
have a white powdery coating. Silicone contamination
sends a rich exhaust signal which causes the ECM to
command an excessively lean air/fuel mixture.

Was a problem found?

—

Verify repair

Go to Step 6 

6

Check the fuel pressure. Refer to Fuel System
Pressure Test.

Was a problem found?

—

Verify repair

Go to Step 7 

7

Monitor ”Long Term Fuel Trim” on the Tech 2.
 Is ”Long Term Fuel Trim” in the negative range (rich
condition)?

—

Go to Step 8 

Go to Step 9 

8

Check items that can cause the engine to run rich.
Refer to Diagnostic Aids in DTC P0172.

Was a problem found?

—

Verify repair

Go to Step 10

9

Check items that can cause the engine to run lean.
Refer to Diagnostic Aids in DTC P0171.

Was a problem found?

—

Verify repair

Go to Step 10

10

Check for proper ignition voltage output with the spark
tester 5-8840-0383-0.

Was a problem found?

—

Verify repair

Go to Step 11

11

Check for a loose ignition control module ground.

Was a problem found?

—

Verify repair

Go to Step 12

6E1–241

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Step

No

Yes

Value(s)

Action

12

Visually/Physically inspect the secondary ignition
wires. Check for the following conditions.

D

Verify that all ignition wire resistance are less than
the specified value.

D

Verify that ignition wires are correctly routed to
eliminated cross–firing.

D

Verify that ignition wires are not arcing to ground.
Spraying the secondary ignition wires with a light
mist of water may help to locate an intermittent
problem.

Was a problem found?

22.4 

W

Verify repair

Go to Step 13

13

1. Check ignition coil secondary resistance.
2. Replace the coil if it is not within the specified range

of resistance.

Did the coil require replacement?

9 k

W

– 12 k

W

Verify repair

Go to Step 14

14

1. Remove the spark plugs and check for gas or oil

fouling, cracks, wear, improper gap, burned
electrodes, heavy deposits or improper heat range.

2. If spark plugs are fouled, the cause of fouling must

be determined before replacing the spark plugs.

Was a problem found?

—

Verify repair

Go to Step 15

15

1. Check the injector connectors.
2. If any of the connectors are connected at an

improper cylinder, correct as necessary.

Was a problem found?

—

Verify repair

Go to Step 16

16

Check the ECM grounds to verify that they are clean
and tight. Refer to the ECM wiring diagrams in
Electrical Diagnosis.

Was a problem found?

—

Verify repair

Go to Step 17

17

Visually/physically check the vacuum hoses for splits,
kinks and  proper connections and routing as shown on
the ”Vehicle Emission Control Information” label.

Was a problem found?

—

Verify repair

Go to Step 18

18

Check the exhaust system for a possible restriction:

D

damaged or collapsed pipes

D

internal muffler failure

D

Refer to Restricted Exhaust System Check to
measure back pressure and determine if the
catalytic converter is plugged.

—

Verify repair

Go to Step 19

19

1. Review all the diagnostic procedures within this

table.

2. If all procedures have been completed and no

malfunctions have been found, review/inspect the
following:

D

Visual/physical inspection.

D

Tech 2 data.

D

Freeze Frame data/Failure Records buffer.

D

All electrical connections within a suspected
circuit and/or system.

Was a problem found?

—

Verify repair

Contact

Technical

Assistance