O2 Sensor

[Blaze_System02]

Hey guys,

On my 1998 Celica 5sfe, my check engine light came on. I got it tested and it's my Bank One O2 Sensor (I have three--two before the cat and one after the cat)

Anyway, i was wondering, would a NA MR2 have the same Sensor as my celica? ( while typing this, i just thought about the year of my car and older MR2's.. Have the engines changed that much from 91-98?)

I've been driving it around for about 3 weeks now. It's my DD. (155,XXXmiles) I need to get it replace ASAP. I was wonder would a MR2 5sfe sensor work on my 98 5sfe engine?

The only problem is that it burns a little rich. MPH is about the same however when i'm lower on gas it really eats it up.

It cost 108.99 at autozone to buy and 117.00 at advanced auto parts
Or a build your own O2 sensor at autozone at 63.00 (YEA RIGHT! haha screw that)

Buuuuutttt, i was wonder if they are interchangeable parts, many i can get a deal from someone here on the board. or some junk yard with a camry( which i think has a 5sfe), celica or MR2.

Thanks!


BTW, i just had my thrmostat replaced... and i got my check engine light tested yesterday again and it said O2 sensor AND Insufficient Coolant temperature or something like that. The guy at auto zone said my car may require a High temperature thermostat and the guy put on a low or medium thermostat.

I check both of my hoses why it was hot and i know its ciruculating the fluids... maybe i just needa flush.

Now, in theory could my insufficient mix of air to fuel ratio cause my temperature in my engine to rise? Or not that much that it would be a problem?

[Blaze_System02]

bump bump bump

[Blaze_System02]

Bump

[PETC]

Should be the same, but that car sounds like a California car as most of them only had 1 O2 sensor... but it is a '98 so it's possible emissions laws changed. How many wires does it have? One, two, four? that's pretty important.

You might also want to check www.sparkplugs.com they have good prices on O2 sensors if you don't mind splicing them in yourself (it's not hard)

[Blaze_System02]

On my Heat Shield, to the right, is the Bank one O2 Sensor.. below which you cannot see is the 2nd... supposily there is a third right after the cat under the car..

imma go downstairs and take a picture of the Bank one and Bank two Sensors

so brb..

[Hot_Karl]

sup daWWWGGG!!!
ME have same problem - except my car is throwing codes 25 and 26 w/o the sensor even plugged in, weird huh?

DO NOT BUY BOSCH!!!

I bought a new one from www.densoproducts.com and it was a hell of a lot cheaper than from any parts store and its OEM! Ended up coming to $45 shipped for an OEM made OE spec sensor when that would sure as hell cost alot more from toyota or pepboys.

[TomsMR2]

this isnt a celica board, nor are we a parts store.. i have no idea what sensor your car uses. you have an OBD2 car, a LOT of things are going to be different than mr2's. obd2 has a totally different CEL detection logic than obd1 mr2's had, its MUCH more strict. our cars can be on fire, running on 2 cylinders, with the o2 sensor unplugged and a gutted cat and not turn the CEL on.

i dont mean to drive you away, but you need celica specific answers, not 5sfe specific. 5sfe specific we'll be glad to help you with

order whatever sensor www.sparkplugs.com says your car needs, get a direct fit though, no splicing.

[Blaze_System02]

Nice! i just might check that out.






Here are the pictures


The Sensor with the Blue tag is the Bank one. The one on the bottom is bank two. The Cooler's piping goes across where it meets the wiring harness (???) I think thats what it is lol




Bank One, As you can see the Sensor has a Blue and White Wires




Bank two. I should have pulled the black covering to see how many wires





Ah! Problem Solved! Both have Blue and White Wires-- Again the Blue tag is Bank one and the other is Bank two. The grey plastic parts on where you see the wires are TWO separate things


Bank One and Bank Two




A different Angle





TWO Separate pieces





Last but not least, I think the black part is the Wiring Harness.. (??? again i think it is) The top left looks like those two grey pieces... not sure.. kinda of a bad angle. Then again that is the cooler's Piping across so that must be it. Then grey pieces have wires from them to the black wiring Harness

[Blaze_System02]

Oh.. Well.. heh..

Alright then... nevermind

[PETC]

You need to go to sparkplugs.com, put in your car's info, and buy a non flanged 2-wire O2 sensor by Denso. It's like 26 bucks, splice it in there, heat wrap, done.

[Blaze_System02]

Thanx for everything guys

PRE-SHE-ATE it

[Blaze_System02]

Originally Posted by TomsMR2

this isnt a celica board, nor are we a parts store.. i have no idea what sensor your car uses. you have an OBD2 car, a LOT of things are going to be different than mr2's. obd2 has a totally different CEL detection logic than obd1 mr2's had, its MUCH more strict. our cars can be on fire, running on 2 cylinders, with the o2 sensor unplugged and a gutted cat and not turn the CEL on.

i dont mean to drive you away, but you need celica specific answers, not 5sfe specific. 5sfe specific we'll be glad to help you with

order whatever sensor www.sparkplugs.com says your car needs, get a direct fit though, no splicing.

hahahaha btw, i'm a member of 6gc.net I know I know, i should have went there first lol.

It's just MR2 board is SOOOOOO COOOOOOOLLLL

[TomsMR2]

Originally Posted by PETC

You need to go to sparkplugs.com, put in your car's info, and buy a non flanged 2-wire O2 sensor by Denso. It's like 26 bucks, splice it in there, heat wrap, done.

the non flanged sensor is the lower sensor.

btw, bank 1 means cylinders 1-4. only V motors have a bank two. your sensors are called upstream (top one) or downstream (lower one), both bank 1 sensors. you might have problems trying to order bank 2 sensors on a 4 cyl

you have a heated o2.. im fairly sure all mr2s use single wire non heated o2's for the primary upstream sensor. the california downstream sensor looks identical to yours, but never burns out on mr2s.

[PETC]

Why not any splicing? It's like half the price and takes NO time or skill to do.

[Blaze_System02]

Originally Posted by TomsMR2

the non flanged sensor is the lower sensor.

btw, bank 1 means cylinders 1-4. only V motors have a bank two. your sensors are called upstream (top one) or downstream (lower one), both bank 1 sensors. you might have problems trying to order bank 2 sensors on a 4 cyl

you have a heated o2.. im fairly sure all mr2s use single wire non heated o2's for the primary upstream sensor. the california downstream sensor looks identical to yours, but never burns out on mr2s.

Lol yea the price check at autozone did say Upstream and Downstream lol.
The guy working there said it's "Bank One Sensor"... So that means i have to order two? because i don't know which sensor it is?

And i have a heated O2?

Originally Posted by PETC

Why not any splicing? It's like half the price and takes NO time or skill to do.

And what exactly is SPLICING?

[PETC]

Cut the old wire, strip off the casing, strip off the casing to the two wires, the O2 sensor will come pre stripped, use the supplied butt connectors to crimp them together, heat shrink over it, done.

[Blaze_System02]

ok thanx


Now imma take this up with 6gc.net but.... I'm extremely low on gas and my CEL has went off. This has happened once or twice before...

I'm guess i'm near the "fumes" on the tank haha.

(I thought this because i was told the O2 sensor regulates air to fuel or at least monitors it or something) -- that is what i was told now...

Maybe i have such little fuel, i'm not burning rich any more lol