Toyota

Have Toyota Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Related Toyota Questions
Toyota corolla: . I have a question. My 2003 toyota corolla
Hello. I have a question. My 2003 toyota corolla has a check engine light on. Took to dealer-they said full on cat converter replacement. Little too broke for that. Would replacing o2 sensors help? Al… read more
Ted Ritter
Ted Ritter
High School or GED
4,872 satisfied customers
2002 Prius, 140,000 miles. P-0420 came up 10 months ago. I
2002 Prius, 140,000 miles. P-0420 came up 10 months ago. I replaced the downstream sensor and reset. When it came on again I had meineke replace the cat and up stream sensor. At 146,000 the P-0420 cam… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
13,102 satisfied customers
My 2003 corolla has a P420 code and my scan tool says that
My 2003 corolla has a P420 code and my scan tool says that TID$01 CID$01 failed What does this mean… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
13,102 satisfied customers
1999 Toyota corolla: mileage..checked engine codes found..o2 circuit
Last few months the mileage on my 1999 Toyota corolla has dropped from 36 mpg to 26 mpg... checked engine codes found P0 420 Catalyst system effeiciency belo threshold (bank1) and P0136 O2 circuit (ba… read more
Stephen D
Stephen D
647 satisfied customers
97 avalon: catalytic converter..that my check engine light..toyota
I have a 97 avalon --i had a after market catalytic converter put on 3/11 after that my check engine light started coming on with the code 0420 . Is the only solution replacing with a toyota catalytic… read more
George H.
George H.
Technician
Associate Degree
19,103 satisfied customers
2003 Toyota Corolla: engine light comes on regularly.
My daughter has a 2003 Toyota Corolla. She is moving to Vancouver and giving her car to us. The engine light comes on regularly. She said that she had it checked by Toyota dealership, and was told tha… read more
Doug
Doug
Technician
Vocational, Technical or Trade Scho
8,445 satisfied customers
2002 corolla: check engine light..catalytic converter..battery cable
I have a 2002 corolla with check engine light on. I have changed the catalytic converter and both oxygen sensors one and two, the check engine lite comes on after 40 miles of driving, after unhooking … read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
19,998 satisfied customers
2000 toyota corolla: The check engine light is on..catalytic converter
2000 toyota carolla 150000+ milesmy daughter brought it up to nashville where we livefor us to use for an occasional car at our apartment in Ky. The check engine light is on. Her husband says it is th… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
19,998 satisfied customers
2003 toyota corolla: check engine light..O2 sensor..engine light comes
I have a 2003 toyota corolla with 227,000 miles check engine light keeps comming on after clearing codes P0420 (B 1) - cataylic efficiency below threshold I already replaced front O2 sensor and added … read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
19,998 satisfied customers
1999 toyota: a check engine light and the DTC is 0420..fwd..o2 sensor
My 1999 toyota forerunner has a check engine light and the DTC is 0420-Catalyst system efficiency below threshold. The truck has 2 catalytic converters. The fwd o2 sensor was replaced last year. The v… read more
Genchi Genbutsu
Genchi Genbutsu
Toyota Master Technician
Vocational, Technical or Trade Scho
3,761 satisfied customers
Check engine light on Trac light on VRC light on All came
Check engine light on Trac light on VRC light on All came on suddenly at once Autozone ran code and it is 0420 WTF?… read more
BigBob
BigBob
Service Manager
High School or GED
4,792 satisfied customers
2003 Toyota Corolla - Check Engine Light My 2003 Corolla has
2003 Toyota Corolla - Check Engine Light My 2003 Corolla has 105,000 miles, and the MIL is on. I got it checked out, and the ODBII code is P0420. I got it checked out by the dealer, and they said the … read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
19,998 satisfied customers
2003 Toyota Corolla: 500 miles..1.8 Liter engine..automatic..VIN
Vehicle info: 2003 Toyota Corolla, 126,500 miles. 1.8 Liter engine, automatic transaxle. VIN 1NXBR38E43Z122286. Check engine light came on last week. Went to Auto Zone for code retreival. P0420 Catyli… read more
Jay Champagne
Jay Champagne
Shop Foreman
High School or GED
190 satisfied customers
2004 toyota corolla: the check engine light was..O2 sensor
Bought a 2004 toyota corolla. the check engine light was on, but down stream O2 sensor was broken. the code confrimed there was a problem with it. Replaced with a bosch and now has 0420 code. replace … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
13,102 satisfied customers
2001 RAV4: oil change..gasket..the catalytic converter and all sensors
Last time I had my oil change (summer) I was told I needed an engine gasket. I put it off until I failed inspection this week. Took my 2001 RAV4 w/90,000 miles to the dealer and was told the catalytic… read more
Carhelp4u
Carhelp4u
GM Service Training
2,560 satisfied customers
2001 Corolla: check engine light..O2 sensor..catalytic converter
2001 Corolla (150k miles) with check engine light, OBD II Scanner shows code 0420 (catalyitc converter efficiency below threshold bank1). We have first replaced down stream O2 sensor, still have same … read more
Amedee
Amedee
Toyota Technician
Vocational, Technical or Trade Scho
1,245 satisfied customers
2002 toyota corolla s: for check engine light on..po420..code means
i ran a test on my 2002 toyota corolla s. for check engine light on. the code i got was po420. can you tell me what this code means?.… read more
Ted Ritter
Ted Ritter
High School or GED
4,872 satisfied customers
My check engine light (2003 Corolla CE) has been on since ...
My check engine light (2003 Corolla CE) has been on since xmas. I know it's a code 0420, and I'm only mentioning that in light of what's just happened, in case it has any bearing on it. I'm planning t… read more
Victor
Victor
Diagnose & Repair cust. vehicles
Associate Degree
767 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU!

JugheadUSA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Chris (aka-Moose)

Chris (aka-Moose)

Auto Technician

1,115 satisfied customers

16 years of experience

Marty

Marty

ASE Certified Technician

199 satisfied customers

ASE & Bosch Master Tech. 30 years experience.

Amedee

Amedee

Toyota Technician

1,245 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Anthony

Anthony

ASE Certified Technician

401 satisfied customers

ASE Master Automobile Technician with over 20 years exp. in this field.

Richard

Richard

ASE Certified Technician

9 satisfied customers

Toyota tech. ASE Certified Technician

Skyvisions

Skyvisions

ASE Certified Technician

13,102 satisfied customers

Toyota Master Diagnostic

Genchi Genbutsu

Genchi Genbutsu

Toyota Master Technician

3,761 satisfied customers

Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x