Question about 2000 Toyota Corolla

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Check Engine Lights On

I have 2000 Toyoto Corolla which has Check Engine Lights On. I had taken to a dealer here in Memphis and they told my CATS are bad n quoted 1600+ to replace So I took it another mechanic and he replaced both O2 sensors, it had taken my Check Engine Lights Off for a while(may be a week). Now its back turned On. He says to get my computers Flashed. Can you letme know what the problem is?

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  • bharris727 May 11, 2010

    It could be the CATS. They may be getting so hot they are burning up the sensors. I would take the car to a dealer and pay them to diagnose the problem and then shop around to get the job done. No one know the car better than those who work on them all day.

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If the code is for the rear cat o2 sensor i suggested to replace the cat. the rear o2 sensor is to tell the commputer ha good is the cats if the cat not burning the gas. the commputer need to see the o2 sensor to check the cat's

Posted on Apr 17, 2009

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How do i locate the catalytic converter and fix on tundra 2000 4.7l v8


Uhhhh... it's under the truck... it's part of the exhaust system. You can buy one for $180-$220 from many online dealers like RockAuto

.Here's some reading about replacement catalytic converters and the law.Enjoy.

http://www.epa.gov/otaq/cert/factshts/catcvrts.pdf


Remember that cats are made up of precious metals inside-the cheaper ones are cheaper because they are use less of the expensive materials,and your check engine light WILL come on after a short period of time with a cheap cat.

Found direct fit cats,
http://www.thepartsbin.com/catalyti...l=751&year=2000

Alternate brand: Magnaflow 53004ca cats for the 2 upfront and used a 94006 for the center one just before the muffler.
They fit perfect and work just fine and are way cheaper than stock.
No check engine lights or anything as someone suggested, LOL! People always with doom and gloom! I never had to change an O2 sensors and the truck is running fine.

http://www.autoanything.com/exhausts-mufflers/Toyota/Tundra/111A50209A50522A0A17A94A1.aspx

Feb 05, 2015 | Cars & Trucks

1 Answer

2000 Isuzu Trooper


the first question, is why did you replace them.



  • they looked bad. ?


  • they failed smog?


  • a guess. ?


  • Poor engine power, or other issues driving? not stated?


you spent 1600 just to throw them a way, (i bet the old ones were good and exhaust leaks , true cause, it is most the time)



gee, they do no harm, why remove them? and its very illegal to do in USA>and removal proves tampering. why do that.>????

and you paid too much, aftermarket cats are cheap and any muffler shop can weld them in (post assumes, not in P.R. of California)

At home new cats are like $99 each and my tig/mig welder, bam

in a shop, add what $200 labor, (4 hours) and bam,

1600 is rip.



well lots of questions, i can answer most, if you just answer

which of the 3 engine you have in that car. (or up to 9 , all countries)

displacment exaclty ,

in 2000 it was 3 engines.2.2 ,3.2, 3.5l, state side.



The car is OBD2 here, (where are you? illl assume USA.

In the USA, the car will fail P0420s and rear cat O2s sensors will fail.

all cars from 1996 to now do that in USA.

and the DASH CEL will glow. running and all cars fail for just that alone.

here.



On some engine,s (older) the EGR fails if the CATS is missing.

this engine has a pure electric EGR, (no vacuum)

and will work cats missing.

this engine runs a MAF sensor and will adjust for any changes

in the exhaust, you do. it measures true air flow, unlike other cars

with only MAP operations. Your EFI runs Air Density system.

The best.



CAT present, then gone.

MPG, it will not help MPG, just cruising, how could it.?

the throttle is like 1/2 way used, cruising. so there will be no change.

Point 2, the EFI is TUNED for stock, and NOT for missing parts.

sorry, that is a fact.

Performance, sure you can get better performance

but you will need to say where?> at what RPM and speed.

all exhausts on all race cars are tuned for the usage factor.

did you know most racing setups suck on the road at low speeds?

like huge exhausts, and other things!

the exhaust will make best power with high velocity system on the street, why not just run a stock car.?

after all , the car is worth more money stock (resales)(

and would you buy a hacked up car, or pay top dollar for one?



Performance is an infinity topic and has no limits.

how FA$T do you WI$H to go? $$$$$$$$$$$

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1 Answer

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You didnt say what country or state you are from. If you are from the US removing the cats will cause your to fail safety and emissions inspections due to missing components ie no catalyctic converter. The cats dont have anything to do with exhaust noise. They are there to capture bad emissions. What dealer did you take it to? A reputable dealer would not have told you straight pipes would solve the problem.

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That worked for me.

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Your brake light switch is stuck. It is located under the dash, near the top of the brake pedal. Replace it with a new one.

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check for parts on google. the latch can be opened from the insde f the boot if its closed and wont open.joe

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-R

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Mass Air Flow sensor! Just remove your air filter cover. Go to Auto Zone and purchase some solvent. Spray past the air filter and it should correct the problem. If not, replace the Mass air-flow sensor. This is commonly mistaken for an oxygen sensor. Mine did this and I followed these steps and it fixed the light. BTW, the light stayed on for 5 years before I fixed it. Never hurt anything. It's normally something to do with emissions. Dummy lights. :)

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