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Ask Mike V. Your Own Question
Mike V.
Mike V., Infiniti Mechanic
Category: Infiniti
Satisfied Customers: 25199
Experience:  Factory trained to repair Nissan and Subaru.
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Changed my o2 sensor and check engine light come's back on

Customer Question

changed my o2 sensor and check engine light come's back on is it because I used an universal o2 sensor
JA: Does the light stay on, or does it blink?
Customer: stay on
JA: What is the model/year of your Infiniti?
Customer: 2001 I30
JA: Are you fixing your I30 yourself? What have you tried so far?
Customer: yes and changed both o2 sensor's and light keeps coming on after like two miles of driving also changed spark plugs
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 8 months ago.
Category: Infiniti
Expert:  Mike V. replied 8 months ago.

Thank you for your question!
My name is ***** ***** give me a moment to review your question and respond with the assistance you need!

Expert:  Mike V. replied 8 months ago.

Did the sensor have a connector on it or did you have to try and wire the connector into it?

Customer: replied 8 months ago.
Customer: replied 8 months ago.
I made sure I wired it right and the conection was right and I double checked it as well
Expert:  Mike V. replied 8 months ago.


I would say it's highly likely the sensor didn't get wired in right. These are a real pain to wire in and I usually avoid them. If you mix up the heater wire with the actual power wire or ground it can really cause a problem. I usually suggest aftermarket plug and play.

Before I condemn this though, what is the actual code you are getting?

Customer: replied 8 months ago.
I'm getting p0134 two times
Expert:  Mike V. replied 8 months ago.

Ok, give me a moment to pull this one up please.

Expert:  Mike V. replied 8 months ago.

Ok, this is really a pretty basic wiring setup however if you have the orange/blue wire crossed with the solid white wire it's sending the wrong signal to the computer.

This is the issue I usually run into with the universal sensors, you can't generally tell what color wire on the actual sensor is for the signal VS the heater signal.

I think you may want to try one with the connector already installed to be honest.