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2003 Lexus ES300 162,000 miles and P0420 code. P0420. No
P0420. No reset attempted but I can try that later today. … read more
Ron Z.
Ron Z.
- Lexus Tech -
Vocational, Technical or Trade Scho
454 satisfied customers
We have a Lexus ES300 2000 model year. The check engine
Hi We have a Lexus ES300 2000 model year. The check engine light came on and the dealer looked into it said that the last converter needed to be replaced, and suggested a local mechanic could change t… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
5,299 satisfied customers
Lexus ES300: While driving cross country, the check engine
While driving cross country, the check engine light came on. In Abilene TX, the codes were P0128, P0430 and P0420. Finally got it to a Lexus dealer in El Paso, who reported codes P0128 and P0420. He s… read more
Eric
Eric
Retired
N/A
33,930 satisfied customers
Lexus ES300: My 2002 Lexus ES300 6 cyl stalls badly especially
My 2002 Lexus ES300 6 cyl stalls badly especially after I took off battery connections to reset the VSC, TrackOFF, Engine Light- Toyota service rep recommended this after I've taken it there to read t… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,848 satisfied customers
I dont know if you cn see the info from my question 10 days
I dont know if you cn see the info from my question 10 days ago - but i had both knock sensors replaced a week ago - the plenem & valve cover seals were redone. ran well for a week - then threw new co… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,848 satisfied customers
Lexus es300: my 99 lexus es300 check engine light is on, driving
my 99 lexus es300 check engine light is on, driving about 70 mph, pushing 3500-4000 rpm's, not shifting to 4th gear, any clue why is doing that… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,848 satisfied customers
Lexus ES300: I have a 1999 Lexus ES300 with around 144,000
I have a 1999 Lexus ES300 with around 144,000 miles on it. It keeps throwing codes P0330 and P0325. I replaced both knock sensors less than one year ago. I replaced the wiring harness leading to the t… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,848 satisfied customers
Lexus ES300: I have a 2001 lexus es300. Im currently getting
I have a 2001 lexus es300. I'm currently getting a CEL with codes P0330 and P0420. I bought it not too long ago and the owner/mechanic i bought it from has changed both O2 sensors. The car runs really… read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
11,778 satisfied customers
Lexus ES300: My 99 Lexus es300 is giving me a p0171 and p0300,
My 99 Lexus es300 is giving me a p0171 and p0300, 0302, 0304, and 0306. I removed all 3 plugs to find they were coated with carbon along with the bank 2 af sensor. Replaced the plugs. Car still missin… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
5,299 satisfied customers
Lexus ES300: My 2002 Lexus ES300 started having power and performance
My 2002 Lexus ES300 started having power and performance problems a day or so after repair of a valve cover oil leak. The mechanic replaced the throttle position sensor based on computer diagnostics, … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,848 satisfied customers
Lexus ES350: 2007 lexus ES 350 108,000 lights on, scanned got
2007 lexus ES 350 108,000 lights on, scanned got p0420, & p0430 codes showing both o2 sensors & both cats bad. Reset codes, filled w/ 1/2 tank non ethonal gas & drove 30 miles hard. lights didn't come… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,848 satisfied customers
Lexus: I have 1998 lexus ES300.I went for the emission
I have 1998 lexus ES300. I went for the emission and it got failed with P0120, P0135, P0401 and P0402. I went to the dealership and shown them the emission failed paper which have code in it. They tol… read more
Ricardo Hohl
Ricardo Hohl
Auto Motive Instructor
Automotive tech
4,320 satisfied customers
1999 Lexus ES300: obd..kicks..engine is cold and in cool weather (30
1999 Lexus ES300 (108K miles) CIL On; Trac Cntrl Off; Will rarely shift to OD. OBD tests indicates P0330 (both banks) Knock Sensors. Can clear codes and car will shift to OD 2 - 3 times before it rese… read more
HondaPlatinum
HondaPlatinum
Vocational, Technical or Trade School
25,572 satisfied customers
Lexus ES300: 1999 es300. how many catalytic converters it has?
1999 es300. how many catalytic converters it has? been told has three & front one needs replacing.… read more
Ron Z.
Ron Z.
- Lexus Tech -
Vocational, Technical or Trade Scho
454 satisfied customers
Lexus ES300: Check Engine Light..Engine Light came on..O2 sensors
I have 02 Lexus ES300. Check Engine Light came on. Ran codes before and was told I should replace two upsteam A/F O2 sensors. I had them replaced with both Bosch A/F Wideband Upstream Sensors. Now I a… read more
Boxer54
Boxer54
Line Technician
2 years university - did not gradua
1,544 satisfied customers
2001 es300: tune..gaskets..Now the check engine light, trac off light
I have a lexus 2001 ES300 I just had a bunch of work done (maintenance work) tune up, timing belt changed, oil gaskets replaced. Now the check engine light, trac off light, and rear tail light out lig… read more
lexpert
lexpert
Lexus Master tech
Vocational, Technical or Trade Scho
2,100 satisfied customers
1997 Lexus ES300: Every once..key nothing..a few minutes..start fine
I have a 1997 Lexus ES300. Several months ago I was told that there was a dead cell in the battery. Every once in a while when I turned the key nothing would happen..no turn over, but if I waited a fe… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,848 satisfied customers
RX300: P0420..catalytic converter..CEL went back on and the same code
Hi there, My 02' RX300 had a P0420 code read out a month ago and the catalytic converter been replaced for $2k from the dealer. Last week, CEL went back on and the same code was pulled out again (p042… read more
lexpert
lexpert
Lexus Master tech
Vocational, Technical or Trade Scho
2,100 satisfied customers
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Meet the Experts:

lexpert

lexpert

Lexus Master tech

2,100 satisfied customers

Master Certified with lexus, 8 years experience with Lexus

Skyvisions

Skyvisions

ASE Certified Technician

1,848 satisfied customers

Lexus Expert

Ron Z.

Ron Z.

- Lexus Tech -

454 satisfied customers

18+yrs experience. State Inspector and Lexus Diagnostics

Chris (aka - Moose)

Chris (aka - Moose)

Technician

345 satisfied customers

16 years of experience

AMD

AMD

Master Technician

270 satisfied customers

L1 Advanced Level Diagnostics Specialist

George H.

George H.

ASE Certified Technician

224 satisfied customers

15+ years ASE Master w/L1 Drivability certification

Tim Mohr

Tim Mohr

ASE MASTER

129 satisfied customers

30 YEARS EXPERIENCE, FORIEGN AND DOMESTIC, GAS AND DIESEL

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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.

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