compession

Discussion in 'Modifications And Maintenance' started by vangthao02, Oct 19, 2006.

  1. vangthao02
    Offline

    vangthao02 New Member

    Likes Received:
    0
    Trophy Points:
    0
    how do i do a compession test on my car when i put in the compession tester my car starts rite up......and what should the compession be on a ej22 turbo..
     
    vangthao02, Oct 19, 2006
    #1
  2. esperunit
    Offline

    esperunit Well-Known Member

    Likes Received:
    11
    Trophy Points:
    223
    you have to disconnect your fuel pump first so that your car doesn't start.

    idk what the compression #'s should be though.
     
    esperunit, Oct 19, 2006
    #2
  3. AWDimprezaL
    Offline

    AWDimprezaL has more posts than you

    Likes Received:
    1,818
    Trophy Points:
    573
    it would be easier to unplug the coil pack on top of the motor
     
    AWDimprezaL, Oct 19, 2006
    #3
  4. Dynapar
    Offline

    Dynapar Well-Known Member

    Likes Received:
    31
    Trophy Points:
    358
    i dont know what thenumbers should be, but make sure they are relavtively close. ie. 140,141,140,139 not 140,139,141,2. i just pulled these numbers outta thin air. IIRC when i comp tested my ej22 (NA) its was around 120ish. may or may not be relevant to your turbo motor.
     
    Dynapar, Oct 19, 2006
    #4
  5. LVT
    Offline

    LVT Well-Known Member

    Likes Received:
    14
    Trophy Points:
    223
    i just remove a spark plug and stick the tester into there and crank the car(do not start but just enough to crank it). atleast that was what i was taught in auto tech.
     
    LVT, Oct 19, 2006
    #5