Can someone tell me what this code means

Asked by Dimples12 Nov 22, 2018 at 12:10 PM about the 2002 Lexus GS 300 RWD

Question type: Maintenance & Repair

My car check engine light is on. Ar auto zone The
system shows catalyst system efficiency below
threshold bank 2. Whar is that?

3 Answers

F_O_R answered 6 years ago

It may mean the catalytic converter has gone bad. Can you post the actual code?

Mark helpful
65,590

firebird338 answered 6 years ago

Do not know if catalytic converter cleaner works but my check engine light came on saying bank one oxygen sensor replaced sensor and light still came on saying bank one oxygen sensor so I thought I had to replace converter but before doing that started using 92 octane from wawa and 93 octane from Exxon was using 87 octane since I owned vehicle for 10 years took about 10 tank fulls and light coming and going off 5 times but light is off now and has not been on since.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

GS

Looking for a Used GS in your area?

CarGurus has 13 nationwide GS listings starting at $6,995.

Postal Code:

Shortcuts

Search Lexus GS Questions

CarGurus Experts

  • #1
    Melissa Pham
    Reputation
    370
  • #2
    Guru5XDYP
    Reputation
    340
  • #3
    Paul
    Reputation
    310
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Lexus IS
19 Great Deals out of 320 listings starting at $6,500
Used Lexus LS
4 Great Deals out of 30 listings starting at $9,995
Used Lexus ES
18 Great Deals out of 186 listings starting at $3,990
Used Lexus GX
50 listings starting at $16,495
Used Lexus RX
41 Great Deals out of 812 listings starting at $4,995
Used Toyota Camry
62 Great Deals out of 1,074 listings starting at $3,500
Used Lexus LX
32 listings starting at $9,450
Used Honda Accord
56 Great Deals out of 991 listings starting at $2,000
Used BMW 3 Series
64 Great Deals out of 1,232 listings starting at $2,500
Used Toyota 4Runner
15 Great Deals out of 301 listings starting at $9,995
Used Mercedes-Benz E-Class
35 Great Deals out of 506 listings starting at $5,700
Used Toyota Avalon
6 Great Deals out of 32 listings starting at $4,388

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.