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Need 2 find the idol ajustment on 1992 gt - Legacy Subaru Cars & Trucks

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  • forgetand Sep 11, 2008

    my car is idleing funny and just "chugging" like a deisel. I've changed spark plugs and tested the cap and rotar. I beleive it's the same problem. How do i restart the computer?

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Hi erdnaway

im dave hope i can help

technically the idle control on your vehicle is computer controlled and non adjustable. If the idle is high or low there is likely a code in your emission system (check engine light) and a sensor or emissions part that is not working properly or the computer itself. However if you look on throttle body you will find a slotted screw that will adjust the air/fuel mixture to get a better idle. When you find the screw be sure to have the engine running while you adjust it so you can hear the differences. If you would like to fix it properly you will need to the pull the codes from the computer diagnostic terminal. If you'd like to do that after adjustment of your air/fuel mixture post back. It would be a good idea to make a mark between the screw and the throttle body so that when you fix the emission related component causing the erratic idle you can put the screw back to its original position before restarting the engine

Posted on Jul 20, 2008

  • Diana Rauh
    Diana Rauh Oct 23, 2013

    I'm not sure what category this would be under. I have a 1990 Subaru Legacy Wagon and if it sits for too long while the engine is running it heats up like crazy starts smoking and I am wondering if is going to make it another day. any suggestions please?

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