Proud owner of a 1995 Maxima. No problems till now. Did the code thing and came up with 0707 "Rear Heated O2 Sensor".
I was reading that the rear sensor just confirms the readings coming from the two front sensors. At $100+, do I really need to replace the rear sensor at this time.
Aloha,
Jeff

 

If it is the rear oxygen sensor go to www.oxygensensors.com ......paid 59.99 for mine and free shipping.

 

Ask for maxima.org deal and get 10% off

 

Does that sensor even do anything? Mines been broken since I bought the car, runs fine

 

i guess it takes away few miles per gallon; and you'll notice the car either running rich or lean and hence performance variation

If you are already getting good mileage with bad o2 sensors, you might gain another 1 or 2 mpg and even performance

 

I believe the rear o2 doesnt affect performance or gas mileage, the front o2's do..

If I recall from old posts... an o2 simulator will fix that CEL right up.

 

correct, the rear o2 doesn't do anything except confirm the cat is working. I replaced mine with a simulator (paid $30 - ebay), though it still throws the code every 1000 miles or so. I need to go back in there and do a better job mounting it I think.

 

Why would you guys pay $30 for an O2 simulator when a real sensor costs about $20 more? I've been driving with a bad one for years now after the dealer replaced the first one under the used car warranty.

I figure if I was going to put in a bypass, it would be like my resistor subsitute for the knock sensor (less than a buck), did this in '99 and the engine hasn't self distructed yet at 240,000 miles

 

Because thats $20 that I dont need to waste :x

 

Ya got b-pipe installed been 2 days now. Car will run fine for awhile then toss the CEL. Its been 0303/0707 yesterday but today i drove around for about 1/4 tank to really beat her in and it ran smooth no codes. Bet tomorrow i toss a code...

 

Thanks People.