Chery A1 2009 Service Manual page 206

Diagnostic Procedure
1.
CHECK EXHAUST GAS LEAK
• Start engine and run it at idle.
• Listen for any exhaust gas leaks before the three way catalyst.
Is the check result normal?
Yes >>
Go to the next step.
No >>
Repair the leak as necessary.
2.
CHECK ECM CONTROL SIGNAL IN DATA STREAM
• With X-431, select view data stream and reference the following data:
MONITOR ITEM
Injector pulse
Is the check result normal?
Yes >>
Go to step 5.
No >>
Go to the next step.
3.
CHECK UPSTREAM O
• Turn ignition switch off.
• Disconnect the upstream O
connector.
• Inspect the electrical connector for damage.
Is the electrical connector OK?
Yes >>
Go to the next step.
No >>
Repair or replace the electrical connector
as necessary.
Chery Automobile Co., Ltd.
DIAGNOSIS & TESTING
INJECTOR REFERENCE DATA
CONDITION
Engine Temp: Warm-up
78°C
Transaxle Position: N
Air Conditioner: Off
Engine load: No load
SENSOR ELECTRICAL CONNECTOR
2
sensor (1) electrical
2
Idle Approximately 2.5 ms
03
DATA
PZSMD030008
99
03–