hp tuner won't connect to ecu. error protocol not detected. I have removes both radio fuses still no avail. tried a good used ecu same issue. handheld scanner won't connect either.
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hp tuner won't connect to ecu. error protocol not detected. I have removes both radio fuses still no avail. tried a good used ecu same issue. handheld scanner won't connect either.
Sounds like an issue at your OBD2 port. Get a wiring diagram for your connector and start checking for power/ground and your signal to the computer.