Restore lost power 1uzfe vvti

Discussion in 'General Discussion' started by Bennett Legwaila, Oct 11, 2018.

  1. Bennett Legwaila

    Bennett Legwaila New Member

    Joined:
    Sep 3, 2018
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    1
    Gender:
    Male
    Hi, my 1uz runs from 0-100 in more than 10s (11-12s) but to my understanding it should be running close to 7.0 seconds flat. I was wondering what i could do to bring back lost power and make it run as good as in the begining.
    The car even struggles to push at speeds above 110km/h. Seems to have the seem same power from there on. Halfway throttle and full throttle are similar.
    This vehicle is lighter than the Ls400 which should mean the difference shouldn't be this drastic.
    I haven't dynoed the car yet as i live about 500km away from the nearest dyno shop.
    Please help, will greatly appreciate it.
     
  2. gloverman

    gloverman Well-Known Member

    Joined:
    Oct 15, 2004
    Messages:
    2,674
    Likes Received:
    53
    Trophy Points:
    48
    Occupation:
    mechanic
    Location:
    Hamilton. New Zealand
    Have you checked the operation of the AVIS VSV?

    Is it still running auto?

    Have you checked for fault codes?
     
  3. George_R

    George_R Member

    Joined:
    Sep 13, 2010
    Messages:
    888
    Likes Received:
    15
    Trophy Points:
    18
    Gender:
    Male
    Occupation:
    DSP engineer
    Location:
    Russia, Moscow
    Home Page:
    Can be anything
    The vvti are known to sometimes have faulty knock sensors and not set corresponding code.
    However you are likely to have many problems at once
    Buy cheap diag.tool like ELM327 ver.1.5 (strictly 1.5) and ELMSCan Toyota app for android phones. That's absolute minimum setup that costs about a couple beers. Then you will at least have minimal chances to find some of your problems
     
    gloverman likes this.

Share This Page