A friends rs is running abit doggy, had a quick look & seems to be a tps problem as these should click when the trottle is pressed in the bay & his wasnt.

He has changed the tos todsy but no matter how u adjust it you cant get it to click so suspect the fault to be electrical?

Wondering if its just the ecu that controlls this or if there is any relays that could be at fault??

Any ideas??