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Thread: 91 legacy na 2.2 litre rough idle/check engine light.....help!

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    91 legacy na 2.2 litre rough idle/check engine light.....help!

    Ok, my first post, hi to everyone, car was looked at by the local dealer. Tech said charcoal canister is dead recommended replacement at something over 300 clams...i passed on that deal. What i would like to do is spoof the ecu so the cel stays off and get it to idle smoothly without spending money i dont have on it. Anybody got any ideas on this?

    Thanks in advance....

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    Kenny's Avatar

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    That is not possible. The ECU in pre-2000 Subaru's is locked. You can not flash it. If you do it will just reset itself. You just have to fix the problem if you want it off. Have another dealer or a Subaru tech check out the issue to make sure the canister is causing the problem.

    What code is showin up? Numerous things can set off on code. And numerous things can cause a rough idle.

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    is that the same as the evap canister by the horn at the front end? mine had a snapped hose that kept it from passing emissions, so i got one from a salvage yard for 14 bucks andwent through. dealer wanted like 75 bucks for it.

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