Check engine light came on at 119,600 miles, Why?

Asked by Dec 12, 2006 at 11:13 AM about the 1997 Toyota Corolla

Question type: Maintenance & Repair

I have only had the car 1 1/2 months.  All fluid levels are fine.  The car starts fine and runs well.  Up until yesterday afternoon, the light came on and stayed on.  This morning it stayed on as well.

4 Answers

31,335

hi lissy, It could a whole number of problems. It could be something as simple as the gas cap wasn't on tightly enough and air got into the systen (it will eventually just flush itself out) to something more serious which would have to get looked at by a mechanic. I recommend having a mechanic looking at the car to make sure that continued driving isn't damaging the car even more.

1 out of 1 people think this is helpful.

If your gas cap is on tight, its the catalytic converter. It may need changing.

335

Frequently, the check engine light comes on when an oxygen sensor needs to be replaced.

3 out of 3 people think this is helpful.

I have a 1997 corolla. At 120,000 engine light came on and it was the oxygen sensor(off of exhaust manifold). You can have the engine light "read" at Auto zone, or Schucks for free. This posting is likely anchient, still thats my 2 cents worth. Derek out

2 out of 2 people think this is helpful.

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