1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  1. fast_eddie_s3

    fast_eddie_s3 New Member

    25
    0
    1
    Pretty sure I've got one....

    I've followed the sticky guide and checked block 32

    Read values 1.7 & -2.3 with fault
    16891/P0507/001287 - Idle Control System RPM: Higher than Expected.

    (I've also been flagging 16885 so looks like vehicle speed sensor is dead but I don't think it would do anything???)

    Anyway cleared faults, and watched it sit steady at zero zero for a while till oil temp came up. Just as the temp needle starts to lift, the block 32 readings shift to 0.9 and -0.8

    Went for a quick thrash (max pressure reading on 115 was 2.4 bar absolute - I make that ~20psi boost???). So boost side is ok?

    Came back and sat at idle for a bit and watched the block 32 values rise up to 1.7 and -0.8.

    So, my question is have I diagnosed this right as a vac leak? and if so where are the most likely culprit areas to check?

    Thanks!
     
  2. s3dave

    s3dave TFSI Hybrid Supporter

    10,110
    736
    38
    There still well within tolorence, maybe leave it a bit and look again, the first figure is idle adaptions so poss a vac leak..check fuel pressure reg piping and associated pipe work
     

Share This Page