
CHERY
·
A21 SERVICE MANUAL ENGINE EFI SYSTEM
11
l
Idle speed control
l
Knock control
l
Provide sensor power: 5V/100mA
l
Closed loop control
l
Control carbon canister solenoid valve
l
Air conditioner switch
l
engine malfunction indicator
l
Fuel fix quantity modification
l
Engine speed signal output(TN signal)
l
Input of speed signal
l
Malfunction self diagnosis
l
Accept engine loading signal etc.
5)Definition of pin
Pin
point
Pin
Connection point
1
Oxygen sensor heating
42
Air intake temperature
2
Ignition coil 2
43
3
Ignition
44
Non persistent power
4
Oxygen sensor heating
45
Non persistent power
5
Ignition coil 1
46
Canister valve
6
Injection nozzle 4(cylinder No. 2)
47
Injection nozzle 3(cylinder
No.4)
7
Injection nozzle 2(cylinder No.3)
48
8
Engine speed
49
9
Coolant temperature
50
Fan control 1
10
Fuel consuming
51
electronically 2
11
Trouble light
52
12
Persistent power
53
electronically 1
13
Ignition coil
54
Electronic throttle valve
position
14
Main relay
55
Downstream oxygen sensor
15
Engine speed sensor A
56
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Summary of Contents for A21 2005
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