Brake booster,VSC CEL and traction

30

Asked by David Apr 23, 2016 at 07:52 PM about the 2006 Toyota RAV4 Base

Question type: Maintenance & Repair

Trying to figure this one out. I can hear the vaccum
leak, but I'm curious if the brake booster failing
would cause these light to come on in my Toyota
RAV4? PO171 was the code when I checked.

2 Answers

223,905

No not the brake booster. P0171 TOYOTA - Air/Fuel Mixture System Lean Bank 1.... Possible causes - Intake air leaks - Faulty front heated oxygen sensor - Ignition misfiring - Faulty fuel injectors - Exhaust gas leaks - Incorrect fuel pressure - Lack of fuel - Faulty Mass Air Flow (MAF) sensor - Incorrect Positive Crankcase Ventilation (PCV) hose connection.... If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replaced the air filter and clean the air flow meter. If the problem persist the front oxygen (O2) sensor may need to be replaced.

2 people found this helpful.
30

So, somehow I missed your response, rowefast! It was the front o2 senor afterall. I replaced that along with a ignition coil and it was still running strong until I sold it for salvage when I got a new car a few months ago!

Your Answer:

CarGurus Experts

  • #1
    CHARLES DEFAZIO
    Reputation
    4,850
  • #2
    Evie Hunt
    Reputation
    4,260
  • #3
    kathymay22
    Reputation
    3,370
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Honda CR-V
99 Great Deals out of 3,843 listings starting at $1,795
Used Toyota Highlander
32 Great Deals out of 737 listings starting at $2,495
Used Toyota Camry
48 Great Deals out of 979 listings starting at $2,212
Used Toyota 4Runner
12 Great Deals out of 309 listings starting at $9,700
Used Toyota Tacoma
57 Great Deals out of 1,080 listings starting at $8,708
Used Toyota Corolla
122 Great Deals out of 1,994 listings starting at $2,795
Used Lexus RX
38 Great Deals out of 858 listings starting at $3,995
Used Subaru Forester
22 Great Deals out of 1,056 listings starting at $2,695
Used Honda Accord
43 Great Deals out of 907 listings starting at $1,599
Used Honda Civic
176 Great Deals out of 3,690 listings starting at $1,995
Used Honda Pilot
45 Great Deals out of 1,256 listings starting at $4,495

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.