Using a tool like (free for non-commercial use with an ELM327 adapter), scan all ECUs. Note: Does 0x08 appear as a "Current" or "Pending" error?
First, let’s clear up a major misconception. is not a generic engine trouble code. The "0x" prefix is a standard programming notation for a hexadecimal number. In the context of Fiat diagnostics, this refers to a message identifier on the Controller Area Network (CAN bus). fiat 0x08