02 sensor q's
#1
02 sensor q's
Other than the 02 sensor that's located back near the cat, I saw what looked like another 02 sensor coming off the first header near the Y-pipe flange. I'm guessing there's also one at the rear header...
At the moment, my car is running all the symptoms of a bad 02 sensor...****ty mileage (I calcuated about 13-15mpg last tank), running rich (fuel smell) and funny acceleration sometimes. I pulled out the 02 sensor by the cat, and it was covered in gas soot...so I'm pretty sure it's gone. I'm also replacing my Y-pipe, since the stock one is rusted solid. (already have my WSP pipe)
overall questions - What are these other sensors?
I've been running rich for a few tanks now...do I think i've damaged my cat or any engine internals?
i was hoping just to replace that one sensor, maybe run some engine cleaner and this problem would be over with.
At the moment, my car is running all the symptoms of a bad 02 sensor...****ty mileage (I calcuated about 13-15mpg last tank), running rich (fuel smell) and funny acceleration sometimes. I pulled out the 02 sensor by the cat, and it was covered in gas soot...so I'm pretty sure it's gone. I'm also replacing my Y-pipe, since the stock one is rusted solid. (already have my WSP pipe)
overall questions - What are these other sensors?
I've been running rich for a few tanks now...do I think i've damaged my cat or any engine internals?
i was hoping just to replace that one sensor, maybe run some engine cleaner and this problem would be over with.
#2
engine internals are likely undamaged.
cat is probably still ok , don't worry about it until you have an emission test or another problem.
there is only 1 o2 on the car.
I think that california cars had a temperature sensor on the exhaust, but I may be WAY wrong on that.
cat is probably still ok , don't worry about it until you have an emission test or another problem.
there is only 1 o2 on the car.
I think that california cars had a temperature sensor on the exhaust, but I may be WAY wrong on that.
#3
Originally Posted by floods943
Other than the 02 sensor ....
http://www.cardomain.com/memberpage/748507/6
After warmup, TPS info is bypassed, engine relies on O2. Autotranny uses still TPS to check for driver heavy toe requests...
#4
Check out Sparkplugs.com for the 02 sensor. Its cheaper I find and its basically OEM replacement without the Nissan label on it.
I had the o2 sensor problem for the longest time, now its taken care of and the car runs perfect. Engine internals shouldn't be affected because you've been driving with a crappy o2.
I had the o2 sensor problem for the longest time, now its taken care of and the car runs perfect. Engine internals shouldn't be affected because you've been driving with a crappy o2.
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