Question about 1990 Mitsubishi Eclipse

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1990 eclipse gs turbo starts & idles wont go past 2500rpms

Also boost jumps to 14 pounds as soon as i press gas pedal

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  • scottpolen Dec 11, 2008

    manual trans, stock , new fuelpump,filter,new massair sensor,reverse yes

  • alex metro
    alex metro May 11, 2010

    does your GST have an automatic or manual transmission?



    is the car stock? if not, what upgrades do you have?



    will the car move in reverse?

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  • 24 Answers

Have you checked your vacuum lines and also mybe your throttle possition sensorthats where i would start oh and is your waste gate opening blow off valve working 14 pounds is ok for a stock eclipse but i wouldnt hold it at that for to long and how is your exhaust flowing?

Posted on Mar 25, 2009

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Posted on Jan 02, 2017

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1 Answer

1990 eclipse gs turbo starts & idles wont go past 2500rpms


you have a boostleak, i build gsx's my roommate owns 4g63 power, give me your email er cell and i will send you a boost leak detector you hook up to the turbo inlet and shoot pressurized air into it and if you have a boostleak it will leak out of the engine somewhere that is your leak you replace the seal or hose and blauw the car is fixed, hook me up with blue feedback since im going this far out of my way. the reason you cant get past 2500rpm is because unmeetered air is being let in post maf sensor and the ecu is trying to richen up the engine which is causing the black smoke and probably a strong smell of fuel. my current dsm is the 9th one ive owned =) they break alot lol easy fix though.

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