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Thread: 4age slow acceleration til hits 4500-5000rpm..then goes hard..

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  1. #1
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    Default 4age slow acceleration til hits 4500-5000rpm..then goes hard..

    Hi guys.....my 4age is stock apart from black top computer...slow acceleration til it hits 4500-5000rpm then takes off revs to 7000rpm....any idea why and how to make it accelerate earlier...thanks. Guys

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    Veteran slide86's Avatar
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    is it a stock 16v ae86 engine?

    You shouldnt be running a 16v engine with a 20v ECU. Im not even sure how its starting to be honest

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    Sorry it's a20v silver top...

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    Because vtec? :p

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    Senior Member t-nol's Avatar
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    What are the plugs looking like? Sounds over fueled
    Don't Worry !!! ,,, I f@#king got this !!
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    not having the VVT working will do this, unplug the solenoid and see if it makes a difference
    My website: SQ Engineering - 4AGE and 3SGE upgrade/replacement parts

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    Junior Member Damon550's Avatar
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    my dizzy died and i had to set timing to about 32 degrees advanced for it to go away

    that was on a bigport though

  8. #8
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    You can test the vvt pulley actuator....

    Best way is in this video below

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