VXOC Astra-J/GTC

Full Version: IPC upgrade problem
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Hi folks, i got insignia 2.0 cdti 2009, and after some time i wanted to change ipc with mid level display for ipc with uplevel display. I read eeprom, changed my car vin and security code and all got working (odometer and no errors since ipc is from the same specs car like mine) but rev counter is staying at 0, although it does sweep at start. Is it some wiring issues or need more programing?