DTC U1433: Dynamic Range Error TPS: Diagnosis
WARNING: This page is about a different car, the 2005 Mitsubishi Endeavor. However, it is still accessible from the selected car via links, so may be relevant.
Check whether the MFI system sets either of diagnostic trouble code Nos. P0222, P0223 or P2135, and repair if necessary (Refer to HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES ).