Question about 1994 Subaru Legacy Outdoor

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Driving along in 100km or 50km zones and the engine cuts out. The speed drops then the power steering cuts out then the engine cuts out. There is no consistency in when it does it. There are no computer code errors so the electrician and mechanic have no idea I have a 1994 subaru liberty wagon. It has an auto electrical problem that my mechanic cant solve, he has tested many other parts and he thinks he has narrowed the propblem to the computer. The car just stops suddenly when driving and will usually start immediately but the POWER light on dash flashes on and off for several secs before you can drive again. Sometimes you can drive for km and everything seems ok and other times the car stops several times in a km intermittent fault that has me pulling out my hair. Basically the car occasionally loses power when going up hills or at a sustained high speed. When it loses power the engine begins to cough and ping, if I stop the car will shake at idle, but will come good after a few minutes. I have changed the air filter, fuel filter, fuel pump

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My 2.5 subaru engine does exactly the same as you describe. Im yet to find the problem...! Its not a good option to operate the vehicle like this as it becomes dangerous. Im banking on the fact that its an electrical issue not fuel as the car runs fine untill the engine just quits out of the blue yet starts again with out a problem for me to continue untill it fails again which could be 100kms or just 3km.

Posted on Sep 22, 2012

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Electrical probblems are always the hardest to solve. I don't believe it to be the ecu, because when one fries it doesn't work at all but that may be the case. I believe from what you describe there is a short somewhere between an important censor and the ecu, like mas, 02 or throttle positioning censors. Ive also come across cases of which the catalytic converter was clogged making the car not operate correctly. Hope this helps.

Posted on Feb 08, 2010

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