2002 Toyota Corolla engine check light on issues

Tiny
CM77
  • MEMBER
  • 2002 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
Hello, Thanks in advance for the advice.
For the car, changed the catalytic converter (CC) and the 2 front/rear O2 sensors in Aug 2007 after the code came up on the diagnostics. After changing the CC, the car appeared to stop sometimes even with my foot on the accelerator especially when I am ready to set off from the stop light. Strangely, the engine check light came on for a few days and then disappeared. The fuel injector was changed by the mechanic to address the stop/start problem mentioned above. It appeared to help, but I seemed to sense the problem sometimes. About a week back, the engine check lights came back again and this time, the codes indicated slow heated O2 sensor (code P0133). It was replaced and as soon as I went up high speed, the engine check lights came back ON. The mechanic re-diagonized to be a problem with the car's computer and that ONLY a dealer can "re-flash" the computer and figure out what the problem is. What seems to be the problem and how do I deal with it? Should I go to the dealer which I do not want to!
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Tuesday, January 29th, 2008 AT 6:00 PM

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Tiny
CM77
  • MEMBER
Hello, I wanted to add to the qeustion with an update.
The engine check light is not on currently (drove about 5 miles since the mechanic last looked at the codes). I think it will turn back on after I drive at high speed for some time. Also, the problem with the accelerator is back again (when I stop at the light and accelerate when I am ready, there is a moment of no movement and suddenly it moves fine).
Any help is much appreciated. Thanks.
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Wednesday, January 30th, 2008 AT 3:16 PM

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