I have a Corolla S 2012 ,the light trac off and check engine come on,the sacan code is PO 171 what ie this

30

Asked by Mar 24, 2015 at 02:42 AM about the 2012 Toyota Corolla S

Question type: Maintenance & Repair

1 Answer

Too lean bank 1 (it only has one bank) most likely a vacuum leak. Check that your PCV is connected, both ends. You can try cleaning MAF, or could be fuel pressure regulator. The Trac Off light ignore. Toyota seems to have an issue with that coming on whenever any code is thrown

2 out of 2 people think this is helpful.
Best Answer

Your Answer

Add photo

Related Questions

  • Burning Engine Oil 29 answers

    I have a toyota corolla 2001 and its burning oil. There is no oil leakage as such but i have to put 1L every 1500-1800 Kms. Went to a mechanic, he told the oil seal(packing) around oil pan needs to be...

    2001 Toyota Corolla

    -

    Maintenance & Repair

  • 2009 Toyota Corolla Brake Noise 17 answers

    My 2009 Corolla with 12k miles had some squealing noises since last week during braking. The dealer first said the rotor is over scored, so they machined the rotor. After that, it has the squealing no...

    2009 Toyota Corolla LE

    -

    Maintenance & Repair

  • my 2006 Toyota Corolla won't start, its sounds like it will but then won't 6 answers

    It turns over and sound like its going to start but then doesnt catch...I had no problems before parked it for a few hrs, and when I got back it did this..I had to have it towed. Please help

    2006 Toyota Corolla CE

    -

    Maintenance & Repair

  • How often do I need to change the oil? 10 answers

    I take my car to GoodYear for oil change but how often do I need to do that?

    2000 Toyota Corolla LE

    -

    Maintenance & Repair

  • How can I lock the car after I've started it to let it warm up? 18 answers

    We live in a cold climate,and it would be nice to jump into a warm car. The car cannot be locked while it is running, even with the spare key, leaving it vulne4rable to low-life thieves.

    2007 Toyota Corolla CE

    -

    General

Search Toyota Corolla Questions

Toyota Corolla Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,350
#2 tenspeed
tenspeed
Reputation 1,800
#3 tennisshoes
tennisshoes
Reputation 1,610
View All

Related Models For Sale

Used Toyota Camry
831 Great Deals out of 89,153 listings starting at $950
Used Honda Civic
491 Great Deals out of 87,957 listings starting at $1,499
Used Honda Accord
717 Great Deals out of 87,000 listings starting at $1,250
Used Toyota RAV4
589 Great Deals out of 69,041 listings starting at $2,350
Used Nissan Altima
847 Great Deals out of 78,711 listings starting at $1,677
Used Nissan Sentra
431 Great Deals out of 56,034 listings starting at $1,499
Used Hyundai Elantra
469 Great Deals out of 51,922 listings starting at $995
Used Toyota Tacoma
504 Great Deals out of 38,892 listings starting at $2,900
Used Toyota Prius
159 Great Deals out of 17,231 listings starting at $1,771
Used Mazda MAZDA3
209 Great Deals out of 30,280 listings starting at $1,495
Used Toyota Yaris
97 Great Deals out of 5,272 listings starting at $1,995
Used Honda CR-V
765 Great Deals out of 58,568 listings starting at $900
Used Ford Focus
542 Great Deals out of 56,093 listings starting at $800
Used Chevrolet Cruze
885 Great Deals out of 77,871 listings starting at $3,797
Used Hyundai Sonata
617 Great Deals out of 51,417 listings starting at $1,495

Used Cars For Sale

2016 Toyota Corolla S For Sale
18 Great Deals out of 611 listings starting at $11,900
2015 Toyota Corolla S For Sale
12 Great Deals out of 884 listings starting at $9,995
2014 Toyota Corolla S For Sale
31 Great Deals out of 939 listings starting at $9,000
2013 Toyota Corolla S For Sale
13 Great Deals out of 504 listings starting at $7,880