Results 1 to 8 of 8

Thread: S15 SR20DET HIGH IDLE & NO POWER

  1. #1
    New Member
    Join Date
    Feb 2008
    Location
    Sydney
    Daily
    Audi A3
    Posts
    47

    S15 SR20DET HIGH IDLE & NO POWER

    need some help with my s15.

    it idles at around 1500-2000rpm when started up and does not come down when warmed up.

    it also has no power, even at free rev its slugglish to rev through to redline.
    iv swapped TPS, IACV and AFM but no change..

    it does sound like its misifring but iv unplugged each coilpack 1 by 1 and it drops revs for a moment which says they are all fine..

    scanned the car it came up knock sensor, so that has been changed too.

    before i go buying a fuel pump etc any ideas on how to test if other parts are faulty with a multimeter or something similar?
  2. #2
    Member Type-Rice's Avatar
    Join Date
    Aug 2012
    Location
    NSW
    Daily
    Shitney Broken Trains
    2nd Car
    RWD & Turbo
    Name
    Suuuuuuu tututututuuuuu
    Posts
    406

    when you disconnect the AFM do you still get the same issue?

    sounds like the car is in limp mode.. also is the ECU stock or does it have a nistune running?
  3. #3
    New Member
    Join Date
    Jun 2014
    Location
    Australia
    Daily
    hulix
    Name
    roy
    Posts
    24

    Check you crank angle Sensor.
  4. #4
    New Member
    Join Date
    Feb 2008
    Location
    Sydney
    Daily
    Audi A3
    Posts
    47

    when i disconnect the AFM the car does not idle at all, it dies. Iv swapped AFM and same issue.

    ecu is stock.

    how would i determine the crank angle sensor is faulty?
  5. #5
    New Member
    Join Date
    May 2012
    Location
    NSW
    Daily
    S15 200SX
    2nd Car
    Busways
    Name
    Rodney
    Posts
    19

    Have u tried tightening/loosening the throttle body screw?
    that plays around with the idle
  6. #6
    New Member
    Join Date
    Jun 2014
    Location
    Australia
    Daily
    hulix
    Name
    roy
    Posts
    24

    does it struggle to reach high rpm?

    sounds like a crank angle sensor issue.
  7. #7
    New Member
    Join Date
    Jun 2014
    Location
    Australia
    Daily
    hulix
    Name
    roy
    Posts
    24

    to check you crank angle sensor, you need to check the voltage with a mulit meter and relate back to work shop manual. generally you have 12v, earth, signal and control.

    hope this helps
  8. #8
    New Member
    Join Date
    Sep 2012
    Location
    Sydney, Australia
    Daily
    2014 C class Mercedes(Current)
    2nd Car
    BMW 7 series
    Name
    Mike
    Posts
    16

    Have a deep analysis first. what happens when tightening and loosing throttle body? Might be a sensor issue. But as for the rest check out properly with volt meter.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •