there is no throttle position sensor on a JTD, its a drive by wire system with an accellerator position pot at the pedal itself. Its quite difficult to get at, expensive (new) and unlikely to be faulty unless a diagnostic specifically shows it to be..
Thanks. I've found 2 suppliers but both want the part number nefore they will send it out..which means I have to find out how to remove my one to get it first.....and that's got me stumped as I cant find out how to do that.the pedal sensor can be problematic on all fiat group cars that use one. scrapyard replacement would be my preffered option.
you can get a diagram and the part number from eper.fiatforum.com
i just tried to get it for you but its saying "too many concurrent connections" which means too many people are using it at present.