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    bcaban's Avatar
    bcaban Posts: 9, Reputation: 1
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    #1

    Dec 11, 2007, 08:51 AM
    Service Engine Light won't turn off
    I have an 01 Nissan Sentra. My service engine light came on and a mechanic told me that it was my catalytic converter. I replaced the converter but that wasn't the problem. The light stayed on and I brought the car to a different mechanic and they told me that it was 2 of my oxygen sensors. The scanner was reading the codes p430 and p420. I replaced both of the oxygen sensors and we reset the system and the light came back on. Can anyone give me any information on what's going on?
    chuzter's Avatar
    chuzter Posts: 3, Reputation: 1
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    #2

    Dec 11, 2007, 12:24 PM
    I would find a nissan mechanic.. every different mechanic you go to is going to tell you something else is wrong and charge you an arm and a leg. Or you can take it to AAMCO and they will give you a free diagnostic and tell you why the light is on. My old car (06 aveo) I took it to pep boys and they told me I had $600 worth of work on my car (I didn't even own it a year) and I took it to the dealership, and they ran a diagnostic, and said nothing was wrong with my car, they went over everything the shop did, and it was all fine. So they saved me $600 be careful out there.

    Also, its common that's sometimes the circuit could be bad and keeping the light on. A pinched wire maybe?
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