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Thread: 4age struggling to rev at certain rpm under load

  1. #1
    Senior Member hachirusto's Avatar
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    Default 4age struggling to rev at certain rpm under load

    hey guys

    having a bit of an issue over the last couple of weeks

    under load the car is developing an issue at about 2700rpm to about 3k were it doesnt want to rev any higher, and as result have to change gear early to compensate for this.

    so far give it a service and changed the plugs just want to gauge what else it could be before I go through and change everything else like leads / coil etc.

    thanks
    Rust is a way of life

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    Veteran Skylar's Avatar
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    always around 2700 regardless of throttle input? It breaks up slowly or clean crisp stop?

    Pics of old plugs STAT.

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    check fuel pump and fuel system .
    Originally Posted by cicca_294
    my dads mate is getting one, in white, aus delivered.
    his mate has an imported on in white,
    and their mate has a blood red one with a 25k new exhaust system...

    i wish i had enough money for a freaking corolla

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    Veteran haveaparty's Avatar
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    sounds like timing issue, try tuning ur dizzy, if u hav dizzy setup

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    sounds like a sensor playing up, either map or tps.

    do a diagnostic on ecu, and see if any errors come up.
    In faith there is enough light for those who want to believe and enough shadows to blind those who don't.
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    Member z_brutalis's Avatar
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    could be a vac leak maybe tvis related check vacuum lines

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    Senior Member hachirusto's Avatar
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    thanks for the input guys, will check all of that and will have to look up how to do the diagnostic on the ecu to see if i get any codes

    thinking it could be the fuel pump as it has been getting pretty loud lately will up post some updates once i start check shit out, going to start by change the fuel filter tomorrow and then do a diagnostic
    Rust is a way of life

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