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Joined: Dec 2004
Posts: 40
Member
2000 Toyota Celica
Member
2000 Toyota Celica
Joined: Dec 2004
Posts: 40
my 00 celica has a faulty O2 sensor that needs to be replaced. my dad and i were thinking about doing it ourselves. My dad has replaced the oxygen sensors on a ford expedition before. my question is, does anyone know how much harder it will be to replace the O2 sensor on my car vs. the expedition. should we even attempt it, or just bring it to a mechanic (who quoted me $300 for the repeair)?

Joined: Dec 2004
Posts: 150
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2000 Toyota Celica
Member
2000 Toyota Celica
Joined: Dec 2004
Posts: 150
are you sure its your o2 sensor or could it be your maf sensor?


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Joined: Dec 2004
Posts: 40
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2000 Toyota Celica
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2000 Toyota Celica
Joined: Dec 2004
Posts: 40
no, its 02. the dealerhsip already ran the diagnostics

Joined: Feb 2004
Posts: 424
Senior Member
2000 Toyota Celica
Senior Member
2000 Toyota Celica
Joined: Feb 2004
Posts: 424
It is fairly easy if you get a direct replacement.

Joined: Jan 2004
Posts: 1,612
2low2slow
2002 Toyota Celica GT
2low2slow
2002 Toyota Celica GT
Joined: Jan 2004
Posts: 1,612
wow thats alot, i got 2 02 sensors and a maf replaced free under warrenty, makes me happy, id say if you got the part do it yourself and save the money


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A boats a boat, but the mystery box could be anything....Even a boat!

Joined: Sep 2003
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2000 Toyota Celica
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2000 Toyota Celica
Joined: Sep 2003
Posts: 2,241
it's easy. do it yourself.


Best 60' 1.959 best 1/4 - 13.7 @ 101mph

Joined: Sep 2002
Posts: 91
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Posts: 91
well autozone told me it was the o2 sensor so I just ordered an o2 sensor from the dealer. However, this weekend, I cleaned my MAF sensor and the damn CEL has not come on since... thumbsup (I know, i should have done this first)

So, I've got a precat-o2 sensor for sale if you need it. Unopened. The receipt from the dealer says they don't take returns on "special orders". BS. But they give credit. I don't care, whatever. I got it for $150 total. If interested, PM me.

Joined: Nov 2002
Posts: 1,073
Specialist
2001 Toyota Celica GT
Specialist
2001 Toyota Celica GT
Joined: Nov 2002
Posts: 1,073
you got ripped. My dealer charged $125 for the sensor INSTALLED.

Joined: Sep 2002
Posts: 91
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Joined: Sep 2002
Posts: 91
Originally Posted by grcelica
you got ripped. My dealer charged $125 for the sensor INSTALLED.

things happen. in all actuality, that was the cheapest dealer around here...others quoted me at $175 $160...so congrats to you!

Just called and they're letting me return it for my money back. nice.

Last edited by defjukie; Jan 12, 2005 11:43am.

Joined: Nov 2003
Posts: 453
Senior Member
2000 Toyota Celica
Senior Member
2000 Toyota Celica
Joined: Nov 2003
Posts: 453
make sure its your O2 though, my 00 GTS was throwing the faulty O2 codes, but it turned out to be a faulty ECU


The 2ZZ god

Joined: Dec 2004
Posts: 40
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2000 Toyota Celica
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2000 Toyota Celica
Joined: Dec 2004
Posts: 40
how did you find out that it was the ecu? because my 00 GTS came up as P0141. O2 sensor, bank one, sensor 2 faulty. Maybe my ecu is bad. but thats pretty expensive isnt it?

Joined: Jul 2004
Posts: 161
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2000 Toyota Celica
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2000 Toyota Celica
Joined: Jul 2004
Posts: 161
Yes the ECU is expensive if you buy it from the dealer 700-800 dollars. I had to replace mine along with all my injectors since their is a TSB for 2000 Celica GTS for ECU and injectors. You can find the parts way cheaper at www.car-part.com [car-part.com] The codes I had were P0171 and P0300. After replacing my ECU and injectors I no longer get the code P0300 but I do get P0171(Running Lean). I think its my sensors as well. Dealer wont give me an answer since I have a CAI and Air/Fuel Gauge.


If Life Starts To Pass You By...Downshift!!!

Joined: Dec 2004
Posts: 40
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2000 Toyota Celica
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2000 Toyota Celica
Joined: Dec 2004
Posts: 40
i got the reapir done and the CEL hasnt come back on, so it was definatly the O2 sensor. it was an easy repair once i found where the end connected in.

Joined: Mar 2014
Posts: 1
msy
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New Member
Joined: Mar 2014
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hi

I need help. i have toyota celica 2000. I need to change bank 1 sensor 1 ( O2 sensor) but is it upstream or down stream one? Dose any one know?

Joined: Nov 2013
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2004 Toyota Celica GTS Tsunami
New Member
2004 Toyota Celica GTS Tsunami
Joined: Nov 2013
Posts: 8
Upstream is forward of the CAT - Catalytic Converter (closet to the Exhaust Manifold) and downstream is after the CAT, closes to the CATBACK Exhaust. Note: the O2 Sensors are different, so ensure you pickup the upstream one. They have different part #'s. Note 2 - From my personal experience only, so other's may have experienced different - Ensure you pick up a OEM one and not after market. I replaced mine with after market and it lasted a few months.


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2001 Toyota Celica GT
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2001 Toyota Celica GT
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Any DIY video or instructions to change Oxygen sensor upstream and downstream?

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