You first need to have the codes read to determine what malfunction was seen by the computer.
It sounds you you are having an intermittent problem with one of the TPS signals. You have a "drive by wire" system that has 2 TPSs built into it and if one fails. The computer automatically puts a half throttle limit on it. This is an expensive part so have it checked to be sure.
Tuesday, September 28th, 2010 AT 8:22 AM