Small Problem
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This is a discussion on Small Problem within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Only on start up when I turn the key it starts and revs up to roughly 1500 like it should ...

  1. #1
    Registered User SilverSemoWrx's Avatar
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    Small Problem

    Only on start up when I turn the key it starts and revs up to roughly 1500 like it should then drops and Boggs down and almost dies. I just recently went with a stage 2 tune. Could this be a fuel pump problem?
    ~2004 Subaru Wrx - Stage 2
    ~2013 Honda Civic

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  3. #2
    Registered User Ingo's Avatar
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    When you turn the ignition on (before actually starting) do you hear the fuel pump going? It usually builds up pressure then quites until pressure drops and it starts back up. Since it has fuel pressure to start and go up to 15oo rpms, I suspect it's not the fuel pump.
    You can't have everything - where would you put it?

  4. #3
    Pro Manscaper Mikie13's Avatar
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    Could be a ton of problems...but yes. Fuel pump could be bad...or something as simple as clogged fuel filter.

    Clean the MAF sensor as well.
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  5. #4
    Registered User Ingo's Avatar
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    Fuel filter is entirely possible, so is MAF and a number of other causes. Once I blew up my intake tubing, the engine started just fine and then immediately died dead. And that was perfectly repeatable. Once I had things plugged back together it worked like it always has...
    You can't have everything - where would you put it?

  6. #5
    zax
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    IAC valve. check it.
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  7. #6
    Registered User SilverSemoWrx's Avatar
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    Quote Originally Posted by zax View Post
    IAC valve. check it.
    Where might I find the IAC
    ~2004 Subaru Wrx - Stage 2
    ~2013 Honda Civic

    -I know a lot about cars, man. I can look at any car's headlights and tell you exactly which way it's coming.
    -Nobody remembers the guy who finished second but the guy who finished second.
    -Speed has never killed anyone, suddenly becoming stationary… that’s what gets you.

  8. #7
    Registered User ElusiveSAV's Avatar
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    When you originally flash, your ecu has to relearn to idle, this is common for first 10 mins, after that if there is a probelm then I have no idea & talk to those guys ^^^

  9. #8
    Registered User nsibanez's Avatar
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    Iac should be located on the throttle body. Clean that as well. If you remove it replace the gasket as it will expand when removed and cannot be re used

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