I have recently had some problems with my 91 gxe max. my gas mileage is poor the acceleration is poor. personally I think it is the oxygen sensor I wanna know how many of them do the 91 gxe's have and is there a "how to" website on how to replace them and also where can i i get them cheaper than 100 dollars

 

car only uses 1, it's located right in front of the converter on the y-pipe.
and you can buy it from me for less than $100

 

is it hard to get to, and how do i get to it

 

its easy to get to, just get under your car and pull it out and then put in the new one you just bought from internetautomart.com "The best 3rd Gen Maxima Parts Store on the Net"

 

O2 constant failure should cause Engine Check -light on dash.

Knock sensor: gas mileage is poor the acceleration is poor.

Howdoyuodo -site www.autzone.com

Tst: http://www.cardomain.com/memberpage/748507/1


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unfortunately a failed o2 will not always set a CEL on our cars

 

the CEL will only light if the ecu sees an out of range voltage. If the 02 starts getting old and tends to stay on the rich side (as they tend to do when old), your mileage suffers and the cel never lights. Been there and done that already. If you have more than 100k on your current 02, it's long overdo for a replacement.

 

I went through 4 o2 sensors in 1 yr and still pulls the code. gotta trace the wiring prob a short

 

I had a similar problem and found this
Autozone Howto and here is
another O2 sensor thread
Hope this helps.

 

Oh, yeah. Get an NTK O2 sensor from Internetautomar.

 

eeeewwww that's no fun

 

I was looking at the how to for replacing o2 sensors. Is the location of the o2 sensor the same for a 94 max. VE30DE?

 

89-94 maximas all have the o2 in the same place