any certain brand or kind of o2 sensor u guys go for beside OEM?

 

Bosch

 

so does o2 sensor really affect gas milage? right?

 

Your car will run richer (thus use more gas) with a malfunctioning O2 sensor.

 

hmmm THANKZ you,,,,, by any chance you know when u suppose to replace it?
like certain milage.

 

is there anyway else to check if your o2 is working properly besides low gas mileage. Im getting about 23 miles to the gallon with a 99 gsr, and people on the forums are getting 27-30. so i want to get this fixed with rising gas prices.

 

air filter? i still dont get how u tell how much gas milage u get is it da thing u can reset like 0300? that how much i get per gallon lol

 

yeah thats what im going off of. every time i fill up i reset it. and i just got the spark plugs and air filter changed. so that just leaves the o2 sensor right?

 

did u do a tune up? yet

 

hmm maybe but it wouldnt cost that much to replace tho

 

the denso worked for me..

 

i just got this one: http://cgi.ebay.com/ebaymotors...h=004

here's another that the seller has: http://cgi.ebay.com/ebaymotors...wItem

oem denso

 

i drive a 99 gsr, if im replacing one should i replace both o2 sensors? are they the same? thanks.

 

might as well replace both cant hurt only help, and if you are a doing a tune up depending on how many miles your car has might as well change the fuel filter and Dizzy cap and rotor, that is if you already changed you spark plugs and wires which i would do to if i was going to replace cap and rotor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jomama &raquo;</TD></TR><TR><TD CLASS="quote">i just got this one: http://cgi.ebay.com/ebaymotors...h=004

here's another that the seller has: http://cgi.ebay.com/ebaymotors...wItem

oem denso </TD></TR></TABLE>
hey was shipping free? this is really cheap.. does the o2 sensor work fine for your car?

 

are the pre-cat and post-cat sensors the same? or are they two different o2 sensors.

 

you only really need to replace the one before the cat if you just looking to increase gas mileage. the one in the cat is just there to determine if the cat is doing its job correctly.

 

ahh ic, thanks for the input.