2002 Mazda Protege Check Engine Light?

  • Thread starter Thread starter David K
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David K

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I changed two oxygen sensors on this car already and each time it cost me more than $400 so I'm hoping there will be an easier and cheaper solution for my current problem/question.

A few times now when I was driving my car within 5 minutes of starting it and while standing at a stoplight the idle rpms will drop down to almost stalling and then come back up. When this happens the check engine light comes on. If I wait a few days the light will go off by itself. In the meantime I do not re-experience this problem. This does not happen a lot. Maybe once every 3 weeks and I've only experienced it three times. In the past when I brought it to the garage the computer says to replace an O2 sensor which are apparently very expensive on this model.

I'm hoping there is another, cheaper solution. Any suggestions are welcomed!
Thanks,

David
 
I guarantee you are getting ripped off. The codes that are retrieved from the check engine lite do not say to change an O2 sensor. The codes say the O2 sensor has detected a problem with the air/fuel mixture. $400 dollars is outrageous for a job that takes 30 minutes. Stop at an auto supply an ask what an O2 sensor costs, you will be surprised. I would suggest you find another"mekanik" and get the idle air control and the throttle position sensor checked. I would also clean the mass air flow sensor. I hope this solves your problem. NEVER replace any part till you know the problem.
 
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