Chery S11 / Chery QQ. Manual - part 214

 

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Chery S11 / Chery QQ. Manual - part 214

 

 

 Chery  QQ  Maintenance Manual                     372 EFI System

 

Yes Next 

12  Shut off fuel gauge valve. Connect ignition key 

again to run fuel pump for 3 seconds. Check if 
fuel pressure can be set up. 

No 14 

Yes Replace 

pressure 

regulator 

13      Open fuel gauge valve, use return fuel 

blocker to clamp fuel pipe for no returning fuel. 
Check if fuel pressure can be set up soon。 

No 

Repair and replace 
injector or fuel pipe 

Yes 

Repair or replace fuel 
inlet 

14  Check if fuel pipe is leaked or blocked. 

 

No 

Replace fuel pump 

Yes 

Repair or replace 
returning fuel pipe 

15  Check returning fuel pipe is blocked or bend 

No Replace 

pressure 

regulator 

Yes Next 

16  Check if the date of MAP or IAT are normal。 

No Replace 

sensor 

Yes Next 

17 

 

Check if ignition coil,distrbutor,high voltage 
wire and spark plug are normal   

No 

Replace or adjust 

Yes 

Check A/C system 

18  Check if A/C system is malfunction. 

No Replace 

ECU 

 
15A/C system malfunction 

Yes Next 

Check if there is full coolant and check if    A/C 
belt,A/C clutch ,pressure switch are narmal 

No Eliminate 

malfunction 

Yes Eliminate 

malfunction 

Turn on A/C switch in engine idle.Check if A/C 
thermistor is malfunction 

No Next 

Yes Next 

Turn on A/C switch. Connect adaptor between ECU 
and harness.Check if output signal for ECU pin 50 
and 58(A/C switch) is normal 

No Check 

harness 

 

Yes 

Replace bulb or 
repair harness 

If the vehicle is low-level contro, check if A/C can 
working when turn off A/C. 

No Next 

Yes Repair 

A/C 

relay and 
harness 

Check if output low-level for ECU pin 68(connect 
earthing terminal of A/C relay pull-in      coil) 

No Replace 

ECU 

 
 
 
 

 

 

 Chery  QQ  Maintenance Manual                     372 EFI System

 

8. Precaution for service   
1)  Precaution for service EFI 
(1)  Controler removal request   
Remove controller before welding or painting; 
Turn off ignition switch when removing controller to void gamage; 
Don’t remove power wires from battery when engine running or electric appliance is in using; 
Don’t start engine with high current; 
Note that the ambient temperature of controller could not exceed 80Cº 
(2)  Clean request: Please observe following regulations: 
Put removed parts on clean place and cover them with suitable cloth. 
Only allowed to pull out ot insert each harness or tester harness after ignition switch turns off. 
Make sure the correction for connecting wires when measuring voltage or ground for 
electronic control system; 
Removing power wires from battery or pulling out controller connector will cause losing the 
information for diagnosis and self-study stored in memory 
(3)  Precaution for fuel system service 
When removing or installing fuel pump in fully or partial fully fuel tank, pay close attention 
to: 
Mounting equipment that could absorb leaked fuel on tank outlet before operation; 
Avoid skin touch with fuel directly; 
Cover or block out the opened parts if not be used at once; 
Take out parts only before installing. Don’t use the parts witout pakage; 
Don’t damage o-ring during installing injector. Smear a little lubricant on o-ring for beteer 
fitting; 
Don’t use compressed air or move vehicle when opening system. 
 
2) Safety precaution 
  In order to avoid personal hurt or damage injector and ignition unit, pay close attentionto: 
(1)  Don’t touch otr pull out ignition harness if engine is running or starting; 
(2)  Pull bout harness connector if engine is started by starter motor (for example in the 
situation of checking compressed air).   
 
 
 

 

 

                         

SQR7080  Maintenance Manual           372 Engine Mechanical System 

 

1

 

SQR372 Engine 

Maintenance Manual 

                                                                                                        Editors 

                                                     March of 2004 

3Special tools for maintenance: 

 

Outer appearance 

Code and Name 

Purpose 

 

Auxiliary devices for engine 

dismounting and checks 

Mounting onto engine 

dismounting and check 

stand 

 

Engine dismounting and check stand

Dismounting and 

installing engine 

 

Clockwise belt wheel wrench 

Camshaft clockwise 

belt wheel dismounting

 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 

 

 

Spring bush pulling and removing 

device 

Installing crankshaft 

oil seal 

                         

SQR7080  Maintenance Manual           372 Engine Mechanical System 

 

2

 

Throttle locking block removal 

device 

 

   

Auxiliary tools 

Dismounting and 

installation of throttle 

spring locks 

 

Flying wheel  fixture 

Dismounting and 

installation of 

crankshaft  

 

Throttle guiding pipe punch 

Removing and 

installation of throttle 

guiding pipe 

 

Shaft oil seal replacer 

 

 
 
 
 

 

 
 
 
 
 
 
 
 
 

 

 

Oil seal stand    screw driver 

 

 

 

 

Outer appearance 

Code and Name 

Purpose 

 

Crankshaft belt wheel fixture 

Remove and install 

crankshaft belt wheel 

 

Wrench 

Remove and install 

can shaft slave gear 

wheel 

 

 

 

Replace throttle 

spacing, adjust spacing 

washer 

 

 

 

 

 

 

 

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