dc2kid

iTrader: (2)

so i need to change my oxygen sensors i see on sparkplug.com but anyone know any other website that offers a good deal and also whats the diifernce between denso universal fit and the super class first time fit ?

jjashaa

iTrader: (23)

universal you have to cut off the old one and splice the new one in (universal)

i didn't want to do that so i just bought an OEM one to replace both

dc2kid

iTrader: (2)

ok thanks and do i need 33.86 in. lead wire or 19.8 in. lead wire? lol oh and do i need 4 wire one? thanks

dc2kid

iTrader: (2)

theres a 30 dollar difference for the wire differnce lol i guess i stick with the 19 one but anyone know what the oem one is ?

friesm2000

iTrader: (4)

ngk or denso one,
but yeah i would stay away from the universial one , you can never get them to work right, also bosch ones are not as good either
also what year, model, trim (type-s or not), manual or auto (for a cl-s) is your car

winhansse

denso is oem brand.
denso part #234-4096 (front) Denso #234-4621 (rear) Oxygen Sensor from amazon.com

http://www.amazon.com/Denso-234-4621...pr_product_top
http://www.amazon.com/Denso-234-4096...=pd_sim_auto_4

dc2kid

iTrader: (2)

mines a 99 tl and thanks for the amazon links anyone esle know other sites ? i was just confused cause one site i saw they have some wire difference one was 33.86 wire which is 30 bucks more then the 19.1 or something wire

Gfaze

try rockauto.com

dc2kid

iTrader: (2)

hey guys last question lol whats the difference between the non california and the califronia? which one do i buy?

dc2kid

iTrader: (2)

on rockauto.com Denso #234-4621 (rear) this is for california cars but does it make a big difference?

friesm2000

iTrader: (4)

depends on where you are from, but mainly where the car was bought new, cali or not
also are you doing both or just the front one???

dc2kid

iTrader: (2)

im from canada and i guess im gonna do both but right now the code is for my secondary the mechanic suggested i just do both lol

friesm2000

iTrader: (4)

i don't know about ians they speak french, is the code for a catalyst effiencency below threshold or just the rear o2

dc2kid

iTrader: (2)

yea im from toronto its english here lool im getting codes p0137 and p0138 low circuit something

friesm2000

iTrader: (4)

i would say you really only proably need to replace the rear one to fix the problem, but replaceing the front one too does not hurt either, they get kinda slow and lazy, and don't work the best, but the computer is still happy with it, but i have heard (first hand from the owner) of a 20% inprovement in fuel mileage before with just replacing the front one (on the higher end though)

friesm2000

iTrader: (4)

or it could have been unplugged at one point and the key turned on, and just needs the codes cleared,
also any recent exhaust work or new exhaust parts, or maybe even a new tranny recently

dc2kid

iTrader: (2)

alright thanks yea i didi clear the codes they just came back on in couple of hours so im gonna replace both. also does it matter if i buy a universal one for the front and the direct one for the back? for the extra 40 bucks i rather just cut the wire and replace it lol

friesm2000

iTrader: (4)

just get the direct fit for both, you can never get those universials to work right, especially with the included wire splices, if any thing i would much rather see the rear o2 be the unversial one

the front one the computer relies on it HUGELY to make the engine run its best, so you want it to be built to OEM design spec (proably at least 90% of the calculations the computer does is based off that one sensor's feedback/data/output)

dc2kid

iTrader: (2)

alright thanks alot

dc2kid

iTrader: (2)

ok so can anyone confirm the part number is denso part #234-4096 front and #234-4601 for the rear?

winhansse

Not sure about 234-4601
234-4621 for rear is sure, I got it on my 99tl...

http://www.densoproducts.com/resultsApp.asp

fsttyms1

Dont get ones you have to splice. Any corrosion can cause them to not function properly. Get ones that are plug and play. And honestly, i would only get the one if thats all that is not working right.

dc2kid

iTrader: (2)

whats the big difference from the regular ones and the california ones? the california ones for my car are a bit cheaper but is it better?

friesm2000

iTrader: (4)

you need to use the one which is designed for your car and emissions, cause one thing the ecu might have an ever so slightly different programming to the specific o2

but i also know on a 99 mitsi galant that the cali one has two front o2 's where the fed one only has one front o2 on it

Gfaze

They can also have different connectors. Just go with the one that your car takes. If your car is a California emissions model, go with that one. Otherwise, buy the federal one.

dip10

hey DC2Kid, where did you end up buying your O2 rear sensor? I'm looking for one myself. Did you install it yourself, was it easy?

friesm2000

iTrader: (4)

i just had to take my rear off , due to me installing a high flow cat, but yeah it is REALLY easy all you need is a 7/8 wrench (along as it is not siezed in their) and a little screwdriver to undo the clip which holds the wire, and you get to the connecter from underneth (easy to find once underneth)

dc2kid

iTrader: (2)

yea i ended up buying from sparkplugs.com for me it has 58 bucks for the denso one. the shipping was a bit more since i am from canada i think shipping to the states is a bit cheaper, better then paying 100 something at the dealer lol

dip10

I'm also from Toronto, how much was it with the shipping and customs? Your check engine light is out now? Did you replace the front and rear sensors?

dc2kid

iTrader: (2)

i did not recieve it yet shipping takes about 5-6 days she said express shipping was 45 bucks so i just got the regualr shipping should be receving it this week and i dont think there will be customs since they ship it usps and i only got the rear for now front is still good for now