Geely Emgrand X7. Manual part — 39

P2187

Mixture Too Thin When Idling

P2188

Mixture Too Thick When Idling

Refer to 2.2.7.52 DTC
P2127 P2128

P0633

Anti-theft Does Not Learn Malfunction

U0167

No response of anti-theft device

U0426 Anti-theft

Device

Authentication

Malfunction

Refer to 2.2.7.55 DTC
P0633 U0167 U0426

155

2.2.7.15 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. Coolant

Temperature

Between 0℃(32 ºF) and
105℃(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.

1. Valve

timing

2. Intake

VVT

Solenoid Valve

3. Solenoid Valve

Filter

4. VVT Actuator

assembly

5. ECM

156

3. The engine running time

is less than or equal to
1.5s.

4. Oil Temperature Between

-40℃(-40 ºF) and
120℃(248 ºF).

5. Coolant

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 2.2.7.17 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 is any control system DTC code other than DTC P0014, P0015,
P0017 and 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

To Step

DTC P0011 P0012 P0016 P0026

Yes

DTC codes other than DTC P0011, P0012, P0016 and 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.

No

Refer to 2. 12.7.14 DTC Chapter Index.

Yes

157

3

Inspect intake VVT solenoid valve resistance.

A. Disconnect intake VVT solenoid valve harness connector EM13.

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

Standard Resistance: 7.2 Ω at
20℃(68 ºF)

进气VVT电磁阀线束连接器 EM13

1

2

NL02-0031c

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

Replace VVT solenoid valve as per “2.2.8.3
Replacement of VVT Solenoid Valve”

Yes

No

Replace VVT solenoid valve as per “2.2.8.3
Replacement of VVT Solenoid Valve”

Yes

No

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

Yes

Air intakeVVT electromagnetic valveharness

connectorEM13

158