O2 sensor - what's good? - Toyota Nation Forum : Toyota Car and Truck Forums

fox_prime · 10-03-2005, 07:20 PM

my O2 sensor has gone bad and i was wondering about your opinions...what's a good O2 sensor for a decent price? i checked out Kragen and they sell universal ones for about $90. they also sell both OEMs that run for $180 and $230, cuz mine's a gen4 (has two O2 sensors).

any thoughts? thx

***RningOnFumes*** · 10-03-2005, 07:23 PM

get the universals and splice them into your wires...should work fine

***Durrby*** · 10-03-2005, 07:32 PM

Just picked up a Denso OEM O2 sensor for my gen 3 from Sparkplugs.com for $78. Hopefully my crappy gas mileage will go up. (It has to!)

Looks like for your gen 4 the front one will be $96.80 and the rear will be $95.66...Thats for the OEM ones. If you want to go the universal route they'll be around $45.

Ranger X · 10-03-2005, 07:49 PM

I was going to go universal, but after looking at the rear sensor, I decided that's more work than it's worth. Even so...autozone wants $110 a piece for the OEM type...

celica2004 · 10-03-2005, 08:54 PM

can any one tell me how o2 sensor plays role in improving mileage?

And when is that we need to replace it? Is there any particular timeline?

Ranger X · 10-03-2005, 09:13 PM

They typically go out by 100k...if they're bad, they generate a check engine light trouble code.

fox_prime · 10-04-2005, 04:37 PM

thx guys, that was a big help.

btw, what's a good universal brand?

***RningOnFumes*** · 10-04-2005, 05:23 PM

dunno, whichever brand is cheaper? they all work the same. If push comes to shove and you have to get something becasue it's sensless to pay the extra dough....splicing time

fox_prime · 10-05-2005, 01:38 AM

ic, i guess i'll go for the universal ones.

since there's one on my catalytic converter (which is bad now), do i have to replace my catalytic converter with an O2 bung on it? or can i get a catalytic converter without the bung? cuz right now the busted O2 on it isn't connected to anything else; i had the wires cut and sealed with electrical tape...i wonder if this triggered the O2 sensor to fail.

clutterking · 10-05-2005, 02:33 PM

Quote:

Originally Posted by Durrby

Just picked up a Denso OEM O2 sensor for my gen 3 from Sparkplugs.com for $78. Hopefully my crappy gas mileage will go up. (It has to!)

Looks like for your gen 4 the front one will be $96.80 and the rear will be $95.66...Thats for the OEM ones. If you want to go the universal route they'll be around $45.

Exactly what I did, but I bought the universal Denso, for alittle more than 50 shipped, no more CEL

fox_prime · 10-05-2005, 05:29 PM

Quote:

Originally Posted by clutterking

Exactly what I did, but I bought the universal Denso, for alittle more than 50 shipped, no more CEL

CEL?

Corollacrazy42 · 10-05-2005, 05:37 PM

check engine light

***RningOnFumes*** · 10-05-2005, 05:40 PM

CEL= comida el Leggo (mi eggos)
CEL= can't even leave
CEL= Change every link
or

Check engine light

i think it's the first one

trdcamry00 · 10-05-2005, 05:41 PM

Hey foxprime, i remember you were in the gb for the rippmods header. I'm running a check engine light too. The 02 sensor that went bad for me was the one after the cat. I'm wondering if it is because our header.

fox_prime · 10-05-2005, 07:42 PM

oh you got the same problem? yea i remember you too.

i heard that cats go bad when a O2 sensor goes bad (like in my case). i'm about to buy another universal cat for less than $100 for sure (inlet/outlet 2.25", 9 inches long...i got this info from RippMods a few days ago). (http://www.car-sound.com/catalog/universal/910.aspx)

i also plan to get an O2 sensor or two from Sparkplugs.com...they run about $55 each (shipping included). i'm sure our headers are fine, it's just the darn O2 sensors that messes things up.

i got the check engine light too. what are you planning to do?