Opel Frontera UE. Manual - part 796

6E1–67

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

ENGINE CRANKS BUT WILL NOT RUN

D06RX099

6E1–68

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

D06RX091

6E1–69

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Circuit Description

The electronic ignition system uses a dual coil method of
spark distribution. In this type of ignition system, the
engine control module (ECM) triggers the correct driver
inside the ignition control module (ICM), which then
triggers the correct ignition coil based on the 58X signal
received from the crankshaft position sensor (CKP). The
spark plug connected to the coil fires when the ICM opens
the ground circuit for the coil’s primary circuit.
During crank, the ECM monitors the CKP 58X signal. The
CKP signal is used to determine which cylinder will fire
first. After the CKP 58X signal has been processed by the
ECM, it will command all four injectors to allow a priming
shot of fuel for all the cylinders. After the priming, the
injectors are left OFF during the next four 58X reference
pulses from the CKP. This allows each cylinder a chance
to use the fuel from the priming shot. During this waiting
period, a camshaft position (CMP) signal pulse will have
been received by the ECM. The CMP signal allows the
ECM to operate the injectors sequentially based on
camshaft position. If the camshaft position signal is not
present at start–up, the ECM will begin sequential fuel
delivery with a 1–in–4 chance that fuel delivery is correct.
The engine will run without a CMP signal, but will set a
DTC code.

Diagnostic Aids

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

D

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.

D

Faulty engine coolant temperature sensor – Using a
Tech 2, compare engine coolant temperature with
intake air temperature on a completely cool engine.
Engine coolant temperature should be within 10

°

C of

intake air temperature. If not, replace the ECT sensor.

6E1–70

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Engine Cranks But Will Not Run

 

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

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

Are any DTC’s stored?

—

Go to

Applicable

DTC Table

Go to Step 3 

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 

4

Check for a short to ground and replace the fuse.

Is the action complete?

—

Verify repair

—

5

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 

6

Repair the open ignition feed circuit.

—

Go to Fuel

System

Electrical Test

Go to Fuel

System

Diagnosis 

7

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 

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

9

Repair the faulty circuit.

—

Verify repair

—

10

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

11

Repair the open circuit.

—

Verify repair

—

12

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

13

Repair the faulty wire.

—

Verify repair

—