Poor DRIVEABILITY

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2003 Toyota Tundra, 2003 Toyota Tacoma, 2003 Toyota Sienna, 2003 Toyota Sequoia, and 2003 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

Hesitation/Poor Acceleration

On all models, check fuel pump control circuit. See FUEL PUMP CONTROL CIRCUIT under COMPUTERIZED ENGINE CONTROLS in appropriate SYSTEM & COMPONENT TESTING article or on some models, see DTC P0230: FUEL PUMP PRIMARY CIRCUIT under DIAGNIOSTIC TESTS in appropriate SELF-DIAGNOSTICS article.
On models with electronic controlled automatic transaxle/transmission, (except MR2 and Prius), check for problem with electronic controls for automatic transaxle/transmission. See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
On Avalon, Corolla, ECHO, Highlander, Matrix, Prius and 4Runner, check A/C-cut control system circuit. See A/C-CUT CONTROL SYSTEM CIRCUIT under COMPUTERIZED ENGINE CONTROLS in appropriate SYSTEM & COMPONENT TESTING article.
On Prius, there may be a problem with the hybrid transaxle.

Surging

On Camry (except Solara), Corolla, Matrix, MR2 and RAV4 models, check spark plugs. Replace as necessary.
On all models, check fuel pump control circuit. See FUEL PUMP CONTROL CIRCUIT under COMPUTERIZED ENGINE CONTROLS in appropriate SYSTEM & COMPONENT TESTING article or on some models, see DTC P0230: FUEL PUMP PRIMARY CIRCUIT under DIAGNIOSTIC TESTS in appropriate SELF-DIAGNOSTICS article.
On Camry (except Solara), Corolla, Matrix, MR2 and RAV4 models, check injector circuit. See DTC P0300: RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED under DIAGNOSTIC TESTS in appropriate SELF-DIAGNOSTICS article.