p0171

Discussion in 'Modifications And Maintenance' started by 1_sic_rex, Jul 2, 2007.

  1. 1_sic_rex
    Offline

    1_sic_rex Well-Known Member

    Likes Received:
    24
    Trophy Points:
    123
    I have had this problem for a while..... i cant get it to go away.... I check almost everything on NASIOC... except for a new PCV valve... Could a dying fuel pump or turbo be causing this problem?
     
  2. Iroc-Z
    Offline

    Iroc-Z Well-Known Member

    Likes Received:
    1
    Trophy Points:
    223
    If I remember correctly that is a lean code. Have you check for vacum leaks? Exhaust leaks? Or have you checked fuel pressure? I would probably put money on a vacum leak.
     
  3. TSTRBOY2004
    Offline

    TSTRBOY2004 Well-Known Member

    Likes Received:
    403
    Trophy Points:
    393
    DTC P0171 - FUEL TRIM MALFUNCTION (A/F TOO LEAN)

    DTC DETECTING CONDITION
    Two consecutive driving cycles with fault

    TROUBLE SYMPTOM
    • Erroneous idling
    • Engine stalls.
    • Poor driving performance
    CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode.
     
  4. WRX1
    Offline

    WRX1 _ Staff Member

    Likes Received:
    727
    Trophy Points:
    348
    mods?? I have seen it when people install intakes on their cars. Once you max out your fuel trims, the code will pop up.

    Russ
     
  5. ShortytheFirefighter
    Offline

    ShortytheFirefighter Pokemans. I has none. Staff Member

    Likes Received:
    1,571
    Trophy Points:
    398
    Won't E85 do that as well if you fill the tank?
     
  6. 1_sic_rex
    Offline

    1_sic_rex Well-Known Member

    Likes Received:
    24
    Trophy Points:
    123
    No intake or E85.... just a turbo back ehaust with stage two flash... it did it when it was stock too.... now it hesitates really bad at like 4500 rpms
     
  7. WRX1
    Offline

    WRX1 _ Staff Member

    Likes Received:
    727
    Trophy Points:
    348
    Pull logs and throw a wbo2 on there.

    Russ
     
  8. blackozone
    Offline

    blackozone Well-Known Member

    Likes Received:
    1,017
    Trophy Points:
    348
    Probably trouble symptom #3 in this case.... Just playing.

    Did you find where to put that PITA vacuum line that is underneath your intake manifold yet? Don't forget that that hose is still open.
     
  9. TSTRBOY2004
    Offline

    TSTRBOY2004 Well-Known Member

    Likes Received:
    403
    Trophy Points:
    393
    sorry it did have the diag charts attached originally but when I closed down alldata the pics stopped working...
     
  10. 1_sic_rex
    Offline

    1_sic_rex Well-Known Member

    Likes Received:
    24
    Trophy Points:
    123
    Yea.... we checked that on Sao's car... its just an open line
     
  11. 1_sic_rex
    Offline

    1_sic_rex Well-Known Member

    Likes Received:
    24
    Trophy Points:
    123
    Anyone willin to help and get paid???