Hi to all again...I did get the TPS replaced and it did take the surging problem away while in cruise and also not in cruise. Now I have another problem that is similar but not totally. I have noticed a very rough idle at times, sort of like it isn't hitting on all cylinders, then during driving, no matter what speed, it feels as though the motor has been turned off suddenly and then back on in a manner of seconds. Would that be one of the oxygen sensors? If so how would you know which one it could be? I am not sure how many exactly that the 360 has, but I think maybe 3. Also no codes show up detecting anything.