Chery A1 2009 Service Manual page 292

ELECTRONIC ENGINE CONTROLS - ENGINE SYMPTOM DIAGNOSIS
4.
CHECK FUEL SYSTEM PRESSURE
• Release the fuel system pressure (See Fuel Pressure Relief Procedure in Section 04 Fuel Delivery).
• Check fuel system pressure (See Fuel Pressure Test in Section 04 Fuel Delivery).
Is fuel pressure correct?
Yes >>
Go to the next step.
No >>
If the fuel pressure is greater than 400 kPa (4.0 bar):
− Replace the fuel pressure regulator.
If the fuel pressure is less than 400 kPa (4.0 bar):
− Check the fuel supply system for restrictions or leaks.
− If no problems are found, repair or replace fuel filter, pressure regulator or fuel pump assembly.
5.
CHECK EXHAUST SYSTEM
• Check the exhaust system for restrictions.
Is there a restriction in the exhaust system?
Yes >>
Repair as necessary.
No >>
Go to the next step.
6.
CHECK ENGINE OVERHEATING
• Is the engine overheating (hot start concern only)?
For hot start concerns, does engine appear to be overheating?
Yes >>
Repair the engine cooling system.
No >>
Go to the next step.
7.
CHECK POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM
• Remove the PCV valve and shake it.
Does PCV valve rattle?
Yes >>
Go to the next step.
No >>
Replace the PCV valve.
Chery Automobile Co., Ltd.
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