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  1. 03-09-2011, 07:55 PM #1
    DTP
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    Need help...

    So for once I'll be making a thread asking you guys for help. I dunno what to do.

    My car won't idle at all. Give it gas, and it'll run just fine. Once I let off, the engine dies.

    Checked all vacuum lines, IM, TB, and battery/alternator are relatively new.

    TPS? I'm at loss guys. Thanks for your help!


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  2. 03-09-2011, 08:02 PM #2
    RedGalant2k1
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    Check engine light?
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  3. 03-09-2011, 08:12 PM #3
    DTP
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    Nope, no CEL either.


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  4. 03-09-2011, 08:13 PM #4
    DTP
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    Check that. Just the battery and alternator are new.

    I swapped in the V6 TB a month and a half ago


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  5. 03-09-2011, 08:25 PM #5
    RedGalant2k1
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    Recheck all your vacuum lines.
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  6. 03-09-2011, 08:33 PM #6
    DTP
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    Which ones do I wanna look for specifically?


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  7. 03-09-2011, 09:41 PM #7
    RedGalant2k1
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    I recommend tracking each vacuum line one by one. You need to ensure that all are connected properly. You can also take the time to ensure that each hose is producing vacuum like it should be. So, again track each line, make sure they have vacuum, then go to the next step. On another note, does your cruise control work?
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  8. 03-09-2011, 10:06 PM #8
    mko
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    dead iac possibly. try adjusting the biss screw first, but unplug the iac
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  9. 03-09-2011, 10:38 PM #9
    SPD_FRK
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    Quote Originally Posted by mko View Post
    dead iac possibly. try adjusting the biss screw first, but unplug the iac
    DO NOT TOUCH the biss screw! THis is PRESET at the factory and is never meant to be adjusted whatsoever. The idle speed is set within the ECU, if the car is not idling properly, adjusting this will not fix anything, nor will your car run correctly.


    The IAC is in question, I assume you have swapped in the V6 IAC with the TB swap right?

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  10. 03-09-2011, 10:44 PM #10
    DTP
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    Cruise works, tested that out on the highway just a little bit ago.

    Yes I swapped over the V6 IAC and TPS with the V6 TB.


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  11. 03-09-2011, 10:51 PM #11
    galantlvr34
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    it deffinantly sounds like a bad iac.does it seem like it is doing a idle surge?what are your rpms like when you first start it are they erratic?
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  12. 03-09-2011, 10:58 PM #12
    DTP
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    Quote Originally Posted by galantlvr34 View Post
    it deffinantly sounds like a bad iac.does it seem like it is doing a idle surge?what are your rpms like when you first start it are they erratic?
    Can't really tell. It won't stay on long enough.


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  13. 03-09-2011, 11:03 PM #13
    galantlvr34
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    Quote Originally Posted by DTP View Post
    Can't really tell. It won't stay on long enough.


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    do you only have to give it gas for a couple of seconds or minutes?does it start fine after it is warm?
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  14. 03-09-2011, 11:05 PM #14
    DTP
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    Nope.

    I'll let it sit overnight. If not, I'm heading to the junkyard in the morning


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  15. 03-09-2011, 11:12 PM #15
    galantlvr34
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    Quote Originally Posted by DTP View Post
    Nope.

    I'll let it sit overnight. If not, I'm heading to the junkyard in the morning


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    it seems to have all the symptoms of a bad iac.i would check the vacuum lines that connect to the throttle body to and make sure they are connected.
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  16. 03-09-2011, 11:20 PM #16
    Corey2kG
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    Try this. Tickle your butthole n pinch your nipples! LOL jk Andrew I'm stumped with my car too.

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  17. 03-09-2011, 11:22 PM #17
    galantlvr34
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    Quote Originally Posted by Corey2kG View Post
    Try this. Tickle your butthole n pinch your nipples! LOL jk Andrew I'm stumped with my car too.
    lmao Corey your car is doing the same thing?
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  18. 03-10-2011, 12:58 AM #18
    ShiZnitH
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    Stupid question. But have u tryed resetting the ECU? If u changed the throttlebody the "brain" in ur G, it needs to learn it over again.

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  19. 03-10-2011, 08:38 AM #19
    DTP
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    Quote Originally Posted by ThaShiZnitH View Post
    Stupid question. But have u tryed resetting the ECU? If u changed the throttlebody the "brain" in ur G, it needs to learn it over again.
    Yeah I did that when I did the swap. It ran like crap until I did the reset.


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  20. 03-10-2011, 01:16 PM #20
    ShiZnitH
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    Did u change the MAF sensor? I tryed a MAf sensor from the 2.4 GDi on my 2.0 and it didnt run well at all! Im not shure its gonna work with a V6 MAF since it has 2 more pistons.
    Im guessing something between the airfilter and intake manifold. Vacum lines, airleak between MAF and manifold or the throttlebody itself isnt workin properly

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