Hello, I have a 2-liter 16 valve Tempra, the engine works fine but occasionally the fuel injection fault light lights up on the dash. I used a 3 pin to OBD2 converter with a VAGKKL 409.1 usb interface with IAW-Scan2. I can connect to the ECU but all of the values are wrong and random like there are random faults that come and go instantly and they are weird faults like EEPROM Error, Idle Valve Shorted to +VCC etc. most of the random faults are +VCC short faults but the car runs and drives just fine. The ECU has been tampered before to remove the FIAT Code immobilizer. Also the diagnostic connector on my car while it is a 3 pin socket there are only 2 wires connected to it. I know my VAGKKL interface works because I tried it on another car and it works fine. I tried MultiECUScan too however it just failed to connect.
Thanks.
Thanks.