Geely Emgrand X7. Manual part — 181

2.12.7.15 DTC P0011 P0012 P0016 P0026

1. DTC

description:

DTC P0011 Intake VCP Phase Response Lag Behind

DTC P0012 Intake VCP Camshaft Phase Error is Big

DTC P0016 Intake VCP Camshaft Gear Learn Bias Out of Range

DTC P0026 Intake VCP Hydraulic Control Valve Clinch

Intake camshaft position (CMP) actuator is connected to the intake camshaft and operated by the
hydraulic pressure, which is provided by the oil pump in order to change the intake camshaft to
the CKP (CKP) relative angle. Intake VVT solenoid valve power is provided from the main relay.
ECM controls ground with a pulse-width modulation signal to control the engine oil flow to the
camshaft position actuator. Oil pressure moves a security slide valve within the camshaft position
actuator body at the front of the camshaft. When the safety slide valve moves, the oil is imported
to the camshaft position actuator to rotate the camshaft. The intake camshaft actuator change the
camshaft working angle up to 50 degrees.

2. Conditions For Setting DTC and The Fault Location:

DTC Code

DTC Detection
Strategy

Conditions For Setting The
DTC (Control Strategy)

Fault Locations

P0011

VVT Actual Angle
and Target Angle
Difference Too Great

1. VVT Actual Angle and

Target Angle Difference
Too Great

2. Camshaft

completed

self-learning.

3. Oil Temperature Between

-40 (

℃

-40 ºF) and

120 (248 ºF).

℃

4. Water

temperature

Between 0°C (32 ºF) and
105°C (221 ºF) .

5. Engine Speed Between

600 rpm and 6,000 rpm.

6. No VVT Circuit Fault Set.

P0012

P0016

P0026

VVT actual angular is
not at the default
position

1. VVT actual angle and

default angle difference
greater than or equal to 20
degrees.

2. Camshaft

completed

self-learning.

3. The engine running time

is less than or equal to

1. Valve

timing

2. Intake

VVT

Solenoid Valve

3. Solenoid Valve

Filter

4. VVT Actuator

assembly

5. ECM

723

1.5s.

4. Oil Temperature Between

-40 (

℃

-40 ºF) and

120 (248 ºF).

℃

5. Oil Temperature Between

0 (32 ºF)and 105 (221

℃

℃

ºF).

6. Engine Speed Between

600 rpm and 6,000 rpm.

7. No VVT Circuit Fault Set.

3. Circuit

figure

Refer to 2.12.7.17 DTC P0076 P0077

4. Diagnostic

Steps:

Note: Before carrying out this diagnosis step, observe the data list on fault diagnosis tester and
analyze the accuracy of the data, as these will help with quick diagnosis.

1

Inspect whether there are control system DTC codes other than DTC
P0014、P0015、P0017、P0027 .

A. Connect fault diagnosis tester to the vehicle diagnostic interface.

B. Rotated ignition switch to ON position .

C. Press the power button of fault diagnosis tester.

D. Select the following menu items: Engine/Read DTC codes.

E. Read DTC codes.

Results

DTC Codes Shown

Go to Step

DTC P0011、P0012、P0016、P0026

Yes

other than DTC P0011、P0012、P0016、P0026

No

2

Inspect the following:

A. Check whether the oil viscosity is normal and whether the oil is clean.

B. Observe the Engine oil level. Engine oil level should be within the work range.

C. Inspect whether the oil is changed in a timely manner and whether the engine oil contains

additives or viscosity is incorrect.

3

Inspect intake VVT solenoid valve resistance.

No

Replace engine oil and oil filter. When necessary,
clean the engine lubrication system.

Yes

No

Refer to 2. 12.7.14 DTC Chapter Index.

Yes

724

A. Disconnect intake VVT solenoid valve harness connector EN10.

B. Measure the resistance between the two intake VVT solenoid valve terminals.

Standard Resistance: 7 . 2 Ω at 20°C (68 ?F)

NL02-2031b

4

Inspect the intake VVT solenoid valve action condition.

Note: In the testing process, it is strictly prohibited Connect two wires directly together,
otherwise it might cause an explosion, fire or other dangers.

A. Connect the battery positive terminal to VVT solenoid valve terminal #1 and the negative

terminal to the VVT solenoid valve terminal #2.

B. Inspect the filter movement. Does the filter move?

5

Inspect whether the timing system is normal.

No

Refer to “2.12.8.3 Replacement of VVT Solenoid
Valve” to replace the VVT solenoid valve.

Yes

No

Refer to “2.12.8.3 Replacement of VVT Solenoid
Valve” to replace the VVT solenoid valve.

Yes

VVT electromagnetic valve

725

A. Remove the cylinder hood cover.

B. Align point D shown in the

graphic. Rotate the crankshaft
pulley, so that the timing mark on
the pulley groove aligns with 0
marked on the timing chain
cover.

C. Inspect points C alignment shown

in the graphic. The camshaft
timing gear timing marks should
be at horizontal positions as
shown in the graphic.

D. Inspect points A,B alignment

shown in the graphic. Make sure
intake, exhaust camshaft gear
timing marks distance between A
and B is 8 timing chain sections.

E. Reinstall the cylinder hood cover.

B

C

D

A

FE02-0143b

Are timing marks shown as in the graph?

6

Replace the VVT actuator assembly.

7

Inspect control system DTC codes.

A. Connect fault diagnosis tester to the vehicle diagnostic interface.

B. Rotated ignition switch to ON position.

C. Select the following menu items:

D. Select the following menu items: Engine/Read DTC codes.

E. Read DTC codes.

Any DTC code?

8

System gets normal and the trouble is removed.

No

Refer to 2.12.7.4 Fault Symptom Table for
intermittent fault.

Yes

Next

No

Adjust the valve timing

Yes

Timing chain cover surface

726