QuestionQUESTION: I have one car of Toyota corolla VE 2000 with 16700 km. There is two problems with the car: First, Check engine light on. Second, It starts first automatically with remote control, then died, sometime start again automatically. I go to dealer to check the code for ECM. They said the oxygen sensor reflect very slowly, may need replace them. If oxygen sensor was changed, there is still problem, replace PCM. I have not done this. I don't know the suggestions is right or not. Apart from this, Is the problem of start related to oxygen sensor? What is answer for start problem? Thank you for your time to find the answer!
George Hu
ANSWER: Since the check engine light is on there is a trouble code in the computer in the car, in order to help at all I need to know what the trouble codes are.
---------- FOLLOW-UP ----------
QUESTION: I don't know the code, but technician said the oxygen sensor is slow reflection and need changed. Do you think the oxygen sensor influence its start?
AnswerThe O2 sensor has very little to do with starting the engine, there is another problem and I would suggest that you either try another dealer or an independent shop or locate an autoparts store that will get the trouble codes for you at no charge, you ned to get another diagnosis, I can't offer any help without knowing the trouble code and even if the trouble code indicated a bad O2 sensor replacing it won't help the starting condition, ECMs seldom go bad on these models.
