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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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