Chery Tiggo 5 (T21). Manual — part 93

06–

214

06

Diagnosis Procedure

a. Using a fuel pressure gauge, check fuel pressure (

See page 08-11

).

Standard Fuel Pressure

a. Connect diagnostic tester, start the engine and select Read Datastream.
b. Observe if any speed signal is output.

a. Remove ignition coil and spark plug of one cylinder, and ground spark plug housing. Start the engine, and

check if spark is generated.
OK: Spark is generated.

a. Measure compression of misfiring cylinder (

See page 07-20

).

Engine cranks normally but cannot start successfully while starting

1

Check fuel pressure

Condition

Fuel System Pressure (kPa)

Key ON

400

Engine Idling

400

Key LOCK

400

Repair or replace fuel system

NG

2

Using diagnostic tester, observe if any speed signal is output

OK

Check and repair crankshaft position
sensor wire harness

NG

3

Check spark

OK

Check and repair ignition system

NG

4

Check pressure of cylinder

OK

Check engine to confirm cause of low
compression

NG

OK

06–

215

06

a. Disconnect ECM connector E-033.
b. Turn ignition switch to ON and check ECM connector

terminals.

5

Check ECM power supply and ground

E-033

49 50 51

63

64

15

16

31

32

47

48

33 34 35

17 18 19

1 2 3

52 53 54 55 56 57 58 59 60 61 62

36 37 38 39 40 41 42 43 44 45 46

20 21 22 23 24 25 26 27 28 29 30

4 5 6 7 8 9 10 11 12 13 14

-

+

V

RT21065069

Multimeter

Connection

Condition

Specified

Condition

E-033 (35, 20) -

E-033 (63 or 64)

Ignition switch ON

11 to 14 V

Repair or replace related wire harness

NG

Go to Diagnostic Help

OK

06–

216

06

Diagnosis Procedure

a. Using a fuel pressure gauge, check fuel pressure (

See page 08-11

).

Standard Fuel Pressure

a. Remove ignition coil and spark plug of one cylinder, and ground spark plug housing. Start the engine, and

check if spark is generated.
OK: Spark is generated.

Difficult to start with hot engine

1

Check fuel pressure

Condition

Fuel System Pressure (kPa)

Key ON

400

Engine Idling

400

Key LOCK

400

Repair or replace fuel system

NG

2

Check spark

OK

Check and repair ignition system

NG

3

Disconnect coolant temperature sensor connector, start engine and observe if engine starts
successfully at this time

OK

Check and repair wire harness or replace
sensor

OK

4

Check fuel pressure regulator

NG

Replace fuel pressure regulator

NG

OK

06–

217

06

a. Observe if trouble occurs just after fuel is filled.

a. Disconnect ECM connector E-033.
b. Turn ignition switch to ON and check ECM connector

terminals.

5

Check fuel condition

Replace fuel

NG

6

Check ECM power supply and ground

OK

E-033

49 50 51

63

64

15

16

31

32

47

48

33 34 35

17 18 19

1 2 3

52 53 54 55 56 57 58 59 60 61 62

36 37 38 39 40 41 42 43 44 45 46

20 21 22 23 24 25 26 27 28 29 30

4 5 6 7 8 9 10 11 12 13 14

-

+

V

RT21065069

Multimeter

Connection

Condition

Specified

Condition

E-033 (35, 20) -

E-033 (63 or 64)

Ignition switch ON

11 to 14 V

Repair or replace related wire harness

NG

Go to Diagnostic Help

OK