SsangYong Musso. Manual - part 110

1F-24 ENGINE CONTROLS

SSANGYONG Y158

1. Turn the ignition OFF.
2. Disconnect the Crankshaft Position (CKP) sensor

connector.

3. Turn the ignition ON.
4. Measure the resistance between the CKP sensor

terminal 1 and 2.

Does the voltage measure near the value specified?
Measure the voltage between the CKP sensor
connector terminal 1 and ground.
Does the voltage measure near the value specified?
Measure the voltage between the CKP sensor
connector terminal 2 and ground.
Does the voltage measure near the value specified?
Check for an open or short in the wire between the CKP
sensor connector terminal 1 and the Engine Control
Module (ECM) connector terminal 100.
Check for an open or short in the wire between the CKP
sensor connector terminal 2 and the ECM connector
terminal 99.
Repair the wiring as needed.
Is the repair complete?
1. Turn the ignition OFF.
2. Replace the CKP sensor.
Is the repair complete?
1. Turn the ignition OFF.
2. Disconnect the ignition coil No. 1.
3. Connect a test light between terminal 1 of the ignition

coil No. 1 connector and ground.

4. Turn the ignition ON.
Is the test light on?
Check for open or short in the wire between ignition coil
No. 1 connector terminal 2 and ECM connector terminal
72 and repair as necessary.
Is the repair complete?
1. Turn the ignition OFF.
2. Disconnect the fuel injector harness connectors
3. Install a spark tester on cylinder #1 spark plug.
4. Crank the engine and check for spark.
5. Repeat the above procedure on cylinder #4.
Is a spark observed on two spark plug cables?
Measure the resistance of the spark plug cable that
the spark plug tester did not spark.
Is the resistance of the spark plug cable between
the special value?
1. Turn the ignition OFF.
2. Replace ignition coil No. 1.
Is the repair complete?
Replace the spark plug cable
Is the repair complete?

Engine Crank But Will Not Run (2.3L DOHC) (Cont’d)

Step

Action

Value(s)

Yes

1,090 ± 164 k

Ω

Go to Step 12

Go to Step 17

0 v

Go to Step 13

Go to Step 14

0 v

Go to Step 18

Go to Step 15

Go to Step 16

Go to Step 31

Go to Step 16

Go to Step 31

Go to Step 2

Go to Step 19

Go to Step 24

Go to Step 2

Go to Step 20

Go to Step 25

Go to Step 21

1.8 - 2.2 k

Ω

Go to Step 22

Go to Step 23

Go to Step 2

ENGINE CONTROLS 1F-25

SSANGYONG Y158

Check for a short circuit or open in the wire between
ignition coil No. 1 terminal 1 and Over Voltage
Protection Relay (OVPR) connector terminal 8 and
repair as necessary.
Is the repair complete?
1. Turn the ignition OFF.
2. Disconnect the ignition coil No. 2.
3. Connect a test light between terminal 1 of the ignition

coil No. 2 connector and ground.

4. Turn the ignition ON.
Is the test light on?
Check for open or short in the wire between ignition coil
No. 2 connector terminal 2 and ECM connector terminal
71 and repair as necessary.
Is the repair complete?
1. Turn the ignition OFF.
2. Disconnect the fuel injector harness connectors.
3. Install a spark tester on cylinder #2 spark plug.
4. Crank the engine and check for spark.
5. Repeat the above procedure on cylinder #3.
Is a spark observed on two spark plug cables?
Measure the resistance of the spark plug cable that the
spark plug tester did not spark.
Is the resistance of the spark plug cable between the
special value?
1. Turn the ignition OFF.
2. Replace ignition coil No. 2.
Is the repair complete?
Check for a short circuit or open in the wire between
ignition coil No. 2 terminal 1 and Over Voltage
Protection Relay (OVPR) connector terminal 8 and
repair as necessary.
Is the repair complete?
1. Turn the ignition OFF.
2. Replace the ECM.
Is the repair complete?
1. Turn the ignition OFF.
2. Connect a fuel pressure gauge.
3. Crank the engine.
Is any fuel pressure present?
1. Turn the ignition OFF.
2. Disconnect the electrical connector at the fuel pump.
3. Connect a test light between the fuel pump

connector terminals 5 and 3

4. Turn the ignition ON.
5. With the ignition ON, the test light should light for

the time specified.

Is the test light on?

Engine Crank But Will Not Run (2.3L DOHC) (Cont’d)

Step

Action

Value(s)

Yes

Go to Step 26

Go to Step 30

Go to Step 2

Go to Step 27

Go to Step 2

Go to Step 28

Go to Step 2

Go to Step 41

Go to Step 33

1 sec

Go to Step 34

Go to Step 44

1.8 - 2.2 K

Ω

Go to Step 29

Go to Step 23

Go to Step 2

Go to “OVPR

Circuit Check”

Go to Step 2

Go to “OVPR

Circuit Check”

1F-26 ENGINE CONTROLS

SSANGYONG Y158

Replace the fuel pump.
Is the repair complete?
Is the fuel pressure within the value specified?

1. Check the fuel filter for a restriction.
2. Inspect the fuel lines for kinks and restrictions.
Is the problem found?
1. Replace the fuel filter and/or the fuel lines as needed.
2. Connect a fuel pressure gauge.
3. Crank the engine.
Is the fuel pressure within the value specified?
1. Disconnect the vacuum line from the fuel pressure

regulator.

2. Inspect the vacuum line for the presence of fuel.
3. Inspect the fuel pressure regulator vacuum port for

the pressure of fuel.

Is any fuel present?
Check the fuel for contamination.
Is the fuel contamination?
1. Remove the contaminated fuel from the fuel tank.
2. Clean the fuel tank as needed.
Is the repair complete?
Replace the fuel pressure regulator.
Is the repair complete?
1. Remove the fuel pump assembly from the fuel tank.
2. Inspect the fuel pump sender and the fuel coupling

hoses for a restriction.

3. Inspect the in-tank fuel filter for a restriction.
Is the problem found?
Replace the fuel pump sender, the in-tank fuel filter and/
or the fuel coupling hoses as needed.
Is the repair complete?
1. Turn the ignition OFF.
2. Disconnect the electrical connector at the fuel pump.
3. Connect a test light between the fuel pump

connector terminal 3 and a known good ground.

4. Turn the ignition ON.
5. With the ignition ON, the test light should light for

the time specified.

Is the test light on?
Repair the open wire between the fuel pump connector
terminal 5 and ground.
Is the repair complete?
1. Turn the ignition OFF.
2. Disconnect the fuel pump relay.
3. Connect a test light between the fuel pump relay

connector terminal 86 and ground.

4. Turn the ignition ON.
Is the test light on?

Step

Action

Value(s)

Yes

230 - 380 kPa

(46 - 55 psi)

Go to Step 39

Go to Step 36

Go to Step 40

Go to Step 55

Go to Step 2

Go to Step 37

Go to Step 38

230 - 380 kPa

(46 - 55 psi)

Go to Step 2

Go to Step 38

Go to Step 47

Go to Step 51

Go to Step 43

Go to Step 34

Go to Step 41

Go to Step 42

Engine Crank But Will Not Run (2.3L DOHC) (Cont’d)

Go to Step 2

1 sec

Go to Step 45

Go to Step 46

Go to Step 2

ENGINE CONTROLS 1F-27

SSANGYONG Y158

1. Turn the ignition OFF.
2. Connect a test light between the fuel pump relay

connector terminal 85 and battery positive.

3. Turn the ignition ON.
4. With the ignition ON, the test light should light for

the time specified.

Is the test light on?
1. Turn the ignition OFF.
2. Connect a test light between the fuel pump relay

connector terminal 30 and ground

Is the test light on?
Check for open between the fuel pump relay connector
terminal 87 and fuel pump connector terminal 3 and
repair as necessary.
Is the repair complete?
Replace the fuel pump relay.
Is the repair complete?
Check for an open or short to voltage in the circuit
between the fuel pump relay terminal 86 and OVPR
circuit terminal 7.
Is a problem found and corrected?
Check the wire between the fuel pump relay connector
terminal 85 and the ECM connector terminal 33 for an
open.
Is the problem found?
Repair the wire between the fuel pump relay connector
terminal 85 to the ECM connector terminal 33.
Is the repair complete?
Repair the wire between the fuel pump relay connector
terminal 30 and the battery.
Is the repair complete?
1. Turn the ignition OFF.
2. Disconnect the fuel injector harness connectors

from all of the fuel injectors.

3. Turn the ignition ON.
4. Connect a test light between the fuel injector harness

connector 1 and ground.

5. Repeat step 4 for each of the remaining fuel

injectors.

Is the test light on at all of the fuel injectors?
1. Turn the ignition OFF.
2. Connect a test light between the fuel injector harness

connector terminal 2 and battery positive.

3. Crank the engine.
4. Repeat steps 2 and 3 for each of the remaining fuel

injectors.

Does the test light flash for all of the fuel injectors?

Step

Action

Value(s)

Yes

Go to Step 49

Go to Step 54

Go to Step 53

Go to Step 31

Go to Step 2

1 sec

Go to Step 48

Go to Step 52

Go to Step 2

Go to Step 50

Go to Step 2

Go to Step 56

Go to Step 59

Go to Step 2

Go to “OVPR

Circuit Check”

Engine Crank But Will Not Run (2.3L DOHC) (Cont’d)

Go to Step 57

Go to Step 60

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