piston order
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This is a discussion on piston order within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; wich one would be piston # 4 on a 2002 impreza wrx?...

  1. #1
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    piston order

    wich one would be piston # 4 on a 2002 impreza wrx?

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  3. #2
    Master Baiter EJ257's Avatar
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    Driver side closest to firewall

    Bumper
    ---------
    2 1
    4 3
    ---------
    Firewall
    2005 WRX STi (Mods | Virtual Dyno)

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  4. #3
    Registered User jd92677's Avatar
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    Driver's side, rear
    Stink eye mob #727
    2011 WRX DGM Hatch, Protuned Stage 1

  5. #4
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    cool.. thanx.. how do u read the check engine light? its cuz my code reader is having trouble reading it and they told me i hav to plug and unplug some memory cables from that are on the bottom of the dashboard..wat cables r those?

  6. #5
    Registered User jd92677's Avatar
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    What do you mean by having trouble? Does it not power up or is it not retrieving codes?
    Stink eye mob #727
    2011 WRX DGM Hatch, Protuned Stage 1

  7. #6
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    it powers up but it keeps turning off.. and i cannot erase the codes.. as soon as i put the key fwd with out starting the car the check engine light its already blinking.. i dont know if this is normal

  8. #7
    Registered User EvoEatr's Avatar
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    That is not normal, under the dashboard on the drivers side under the steering column there are two little green PDI connectors that are most likely plugged in, unplug them and your problem should be gone, these are used to put the car is diag. mode and that is how they are delivered to the dealer...

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    ooh, ok.. let me try it... thanx

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    ok, know i was succesfully able to retreive the codes.. this are the codes that it gave me.. p1507(Idle control system malfunction (fail-safe) and p1093 (Tumble generator valve #2 (LH) malfunction (stuck close).. the engine idle really bad.. whaT do u guys think is causing this?

  11. #10
    Registered User EvoEatr's Avatar
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    It is a possibility that one could trigger the other, chances are you might need a TGV actuator, however I dont want to make any guess's... If I where you I would clear both codes and see which one comes back first....

  12. #11
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    OK.. i did and it was the 1507 that came first.. wheres the tgv actuator??

  13. #12
    Registered User jd92677's Avatar
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    If you're saying the engine idles bad, I would guess that the TGV is stuck shut. More than likely the motor is bad and not opening the TGV. They are on the intake runners.
    Stink eye mob #727
    2011 WRX DGM Hatch, Protuned Stage 1

  14. #13
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    so i hav to remove the intake first, right?

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