constantly codes pertaining to running lean, etc

Asked by Guru8FBRC Jan 08, 2020 at 01:38 PM about the 2010 Toyota Corolla LE

Question type: Maintenance & Repair

I have replaced the evap canister, gas cap, purge valve, upper O2 sensor, Mass air flow sensor.( It has not coded for the lower O2 sensor, therefore not replaced (but could be next!) All this since September 2019.
It will run awhile with the code off after repair, but then the code appears again. Sometimes the code goes off by itself, but comes back on again. The MAF sensor was the most recent repair (2 days ago) and that seemed to do the trick. Ran for 225 miles with no code so I went to emissions testing station (tags due Jan 31). because of long line of cars, I shut car off to wait. When I turned on car the code was back!  Help! This has frustrated me and two of the best mechanics in Nashville!

1 Answer

Your Answer:

Related Questions

Shortcuts

Search Toyota Corolla Questions

CarGurus Experts

  • #1
    Jeff Polhemus
    Reputation
    3,360
  • #2
    Gene Arnett
    Reputation
    3,270
  • #3
    hashimmir
    Reputation
    2,500
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Toyota Camry
50 Great Deals out of 1,122 listings starting at $2,500
Used Honda Civic
192 Great Deals out of 3,926 listings starting at $2,877
Used Honda Accord
50 Great Deals out of 947 listings starting at $2,995
Used Toyota RAV4
140 Great Deals out of 2,980 listings starting at $4,999
Used Toyota Prius
14 Great Deals out of 188 listings starting at $5,770
Used Toyota Tacoma
41 Great Deals out of 764 listings starting at $9,975
Used Honda CR-V
185 Great Deals out of 4,925 listings starting at $440
Used Hyundai Elantra
164 Great Deals out of 2,995 listings starting at $1,995
Used Mazda MAZDA3
72 Great Deals out of 1,277 listings starting at $2,900
Used Nissan Sentra
56 Great Deals out of 1,907 listings starting at $3,995
Used Toyota Yaris
14 Great Deals out of 196 listings starting at $2,795
Used Toyota Camry Hybrid
9 Great Deals out of 194 listings starting at $7,995

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.