so i have the car about a year, nothing but problems. kept going into limp mode. we decided to send throttles to Xemodex in canada to refurbish with contactless sensors. Now after getting installing throttles no more limp mode but the car reving on its own. surging up and down. i also hear a hissing noise like a sucktion whine. at a total loss here. any help here is appreciated. thanks. Im in south florida.