I suspect you might be right Ben. Ill double check he turned them off, but cant think what else it could be.
Took another look at the VZ wiring diagram - for the brake\clutch ecu inputs. Can anyone confirm what the switch position symbols mean on this. ie. Is the brake switch NC or NO. I would have thought NO, but looking at the symbols the 2 for the clutch inputs are one of each? Wondering if the ecu thinks Im driving around with the clutch in or brake pressed all the time.
The reason Im asking is because I stumbled across this in my research:
"Also, for a manual transmission tune to function properly the PCM will require input from both a clutch switch and a brake switch."
https://forum.efilive.com/showthread...l-transmission