Chery SQR 7160 sedan. Manual - part 129

 

(3) Unstable idle speed 

No. Problem 

Causes 

Actions 

Air leakage   

Fasten throttle valve body mounting screw. 

Failed idle control valve

Repair or replace the throttle valve body 

Failed throttle position 

sensor 

Check throttle opening. Check if throttle position 

sensor operating parameter within specification. 

Check if throttle cable installed correctly. 

Move throttle and check if throttle stuch. 

Check throttle opening (angle is within 0~0.6 at 

throttle is closed) 

1 

throttle 

valve 

body 

Abnormal throttle 

opening 

If throttle angle is correct, check if throttle position 

sensor connector contact is good.   

 

 

 

Wiring 

diagram

 

 

Key words   

1.ECU anti-theft device                

13.coolant temperature sensor 

2.knock sensor               

14.coolant temperature meter 

3.ignition coil                 

15.coolant overheat indicator 

4. fuel pump                                         

16.idle step motor   

5.fuel injector                                     

17.Top Dead Center/speed sensor 

6.oxygen sensor                                 

18.A/C 

7.carbon canister solenoid               

19.Fan relay (first stage speed) 

8.ignition switch                 

20.Fan relay(second  stage speed) 

9.System failure warning indicator           

21.diagnostic socket   

10. speedometer                                   

22.relay 

11.air pressure/temperature sensor     

22.relay 

12 throttle position sensor        

23.battery  

 

 

Diagnostic Socket 

Vehicle is equipped with lots of ECU self-diagnostic functions; therefore a single 

16-pin connector (called EOBO type connector) is used for performing self-diagnostic. 

Connect diagnostic socket and tester with an appropriate adapter. Select specified diagnostic 

cable upon used ECU. 

 

Appendix 2：Electrical Components Specification    

 

Part ： Electrical 

fuel injector 

Code：IWP116 

 

Internal expanded view

 

Specification： 

 

Fuel injector shape, single hole 

Operating temperature：-30℃～+110℃

Nominal resistance：13.8～15.2Ω10%(at 

20℃) 

voltage：12V 

fuel injection pressure：3.5bar 

Part ： Throttle 

valve position 

sensor 

(irreplaceable) 

code：IPF2C 

 

Internal expanded view

     

 

A=Negative 

B=Power supply (+5V)

  C=signal 

Specification： 

Effective electric power angle：90°±2

Mechanical angle：105°±4° 

Full mechanical travel：110°±8° 

Temperature operating range：-30℃～

+125℃ 

Resistance between A and B =1200Ω

20%(at 23℃) 

Part：Electric fuel 

injector 

Code：BQE02 

 

Internal expanded view

Specification： 

Primary coil resistance (A-B or C-B) 

0.4Ω±10%(at 23°±5°) 

HTtap secondary coil resistance (1—4 

cylinder or 2—3  cylinder)； 

4900Ω10%(at 23°±5°) 

Connector

Connect

or

Connect