Question about 2000 Toyota Corolla

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2001 corolla failed emissions test no reading 1977 limit is 550 any possible solutions to fix this problem thanks for any advice

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Re: 2001 corolla failed emissions test no reading 1977...

Did you have oil changed before test and when was your last tune up air filter plugs wires.ect

Posted on Dec 23, 2009

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1994 buick park ave failed idle emission test 2.15 to high standard 1.20


it appears to need a major tune up, your fuel system is showing signs of alcohol poisoning, most of todays fuels are up to 10% alcohol, this engine and fuel system was not designed for it. You may hit the spending limit for emissions' before fixing it. Plugs, wires , cap , rotor, air and fuel filters is where it starts...keep me posted

May 07, 2014 | 1994 Buick Park Avenue

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2001 grand cherokee misfires


Contact the dealer for a possible software update to cure this issue.

Sep 10, 2012 | 2001 Jeep Grand Cherokee

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94 corolla failed va emissions. hc ppm 15 mph limit: 153 reading 155. how can i get this to pass


get the air fuel mixture leaned off as youre so close it should work any decent mechanic can do it and its easy

Nov 03, 2009 | 1994 Toyota Corolla

1 Answer

MY 1992 HONDA ACCORD WON'T PASS THE EMISSIONS TEST


if it's slightly above the limit.. you could try putting in premium gas or an octane additive as that will lower your emissions slightly..

Sep 11, 2009 | 1992 Honda Accord

3 Answers

Failed emissions test


Hi Don,

First, thank you for asking me for my input on this. It just so happens, that I used to own a Ford ranger that had the same engine as yours. It was a 1990, but there are few changes to these model years.

Anyway, there is only one reason that your HC levels would be high. Your engine has WAY too much unburned fuel in the exhaust. The same reason applies to high CO levels. Too much fuel and/or not enough air.

Below is a link that you may find very helpful. It explains exactly what we are talking about here and also lists some of the possible causes.

EMISSIONS ANALYSIS

Incidently, when I had the same emissions failure on my truck, replacing the air filter and replacing a failed MAP sensor fixed it. - I did NOT have to replace the catalytic converter. If the numbers are as high as you listed above, you will only destroy a new converter anyway because there is obviously not enough oxygen in your exhaust system for the catalyst to function properly. Those numbers are nearly DOUBLE the allowable maximum. If the engine is running correctly and the catalyst is good, your numbers will be WAY BELOW those maximum numbers.

Please understand that I am NOT telling you to replace your MAP sensor without proper diagnosis. There are many possible causes here. Please click the link above and read the article. It will help you to understand what is going on here.

Jun 03, 2009 | 1989 Ford Ranger

1 Answer

What will bring readings into limit


A failing oxygen (O2) -sensor will give failing emission tests. Normally you also get other symptoms:

- too high fuel consumtion
- bad acceleration, stalling problems, sputtering
- the check engine light comes on indicating that the engine control unit has recorded error codes (which will be related to readings of incorrect fuel/air ratio when read by the OBD diagnostics tool at a repair shop).

It is always a good idea to see if you can get any readings from the check engine light if present or much better by an OBD reader to be as certain as possible.

Another component that could cause failing emissions tests is the catalytic converter, giving a similar range of symptoms. To determine if this is the cause is not so easy on older cars with only one O2 sensor, it requires diagnostic skills and equipment. On newer cars with OBDII-systems it will give a recognizable fault code for the cat converter.

Then there are also the issues of the actual cause of malfunction in either or both of these components, is it due to old age and normal wear and tear or is it due to contamination from burning oil (blue tail pipe smoke) or anti-freeze (white smoke), misfiring, etc? Then the cause must be treated as well for a successful repair.

Normally these components have a very long life span and should not have to be replaced more than once or maybe twice for the sensors during the car's lifetime in an otherwise health engine.

Good luck!

May 25, 2009 | 1992 Honda Accord

1 Answer

I have a 2001 Saturn. It failed emissions because


Go get your engine fixed at Jiffy...........You know they got a sale right???

Apr 21, 2009 | 1999 Saturn SC

3 Answers

ASM 2525 NO ppm TAILPIPE EMISSIONS failure


have you had the the engine codes pulled and reset?
and if so what are your engine codes?
i dont know of any car that will pass emissions test with the engine light on.
we cure your trouble that caused your engine light to come on and you will pass your test.
later
paul

Nov 24, 2008 | 2002 Toyota Sienna

4 Answers

2001 toyota corolla check engine light is on. Code reads P420 low threshold. Changed front and rear Oxygen sensors reset the light and drove the car 50 miles and the light came back on. the car will not...


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. :)

Aug 06, 2008 | 2000 Toyota Corolla

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