CHERY·A21 SERVICE MANUAL ENGINE EFI SYSTEM
12
Idle speed control
Knock control
Provide sensor power: 5V/100mA
Closed loop control
Control carbon canister solenoid valve
Air conditioner switch
engine malfunction indicator
Fuel fix quantity modification
Engine speed signal output(TN signal)
Input of speed signal
Malfunction self diagnosis
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
14 Main relay 55 Downstream oxygen sensor
15 Engine speed sensor A 56
