Hej. Jag satt inne på ett forum och hittade nånting, en kille hade samma problem som dig, och det här fick han tillbaka, dock på engelska.
"hi, it's the throttle position sensor (signal to multi function control module).
sounds like a poor connection at the terminals or a broken/fractured wire between the two!
you can check the resistance of the tps to make sure thats ok
terminals 1&3 should get 1000 ohms throttle closed,1&3 should get 2500ohms throttle open. 2&3 throttle closed 2500ohms, 2&3 throttle open 1000ohms.
i had the same on my 460, turned out to be corrosion on tps terminals, quick clean & was sorted, hope it's as simple as mine was for you.
oh, after your done remove the selector cable & disconnect the battery for a couple of secs to reset it all. "
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