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300ZX

I have recently bought a 1987 Nissan 300 ZX non-turbo version. I was told that this light is triggered by vehicle mileage. The vehicle is running fine and I am wondering if I should replace the sensor or reset it as it bother me. Someone here told me to unplug the sensor light which I could do but I would rather deal with this problem if I can. If I have to replace the sensor, is it simple as plug and play? or I still have to reset the sensor light even if the new sensor is in place. Is there a procedure to reset O2 light that you can post it here?

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Never seen one there. The ones I've seen were a single wire taped to the harness by the hood pull that you disconected to kill the light. It's a dumb sensor that has nothing to do with reading the sensor. But yes installing a new O2 sensor is a GOOD idea!

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Steve T

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Use original nissan dealer air filters and do a search on "AIV valve" and make sure it never leaks exhaust through the MAF and you'll never have problems with it.

Only if the AIV valve fails, they can't think of every possible problem. If you're going to keep the car for a long time, a new AIV valve might be good insurance?

It's just I've never turned off the light that way. The other way is much easier and is how the FSM shows to do it. There easily could be a relay there, I've never looked!

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Steve T

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