Question about Subaru Legacy

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Idles rough, no power on acceleration

Had my rocker cover gaskets replaced and a CV done when I picked up the car and started it things seemed rough as it idled. drove away and it was powerlossed accelerated and car vibrated with only a slow increase in speed

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  • Nicki Savage Feb 20, 2012

    Hi geoff, sorry about the info I'm not car savee. it's a 90/91 Subaru Legacy Station Wagon GT 2l Turbo Ex Japanese. I went slowly through all connections and as I was lifting a lead to the spark plug or coil pack it just seperated at a joiner Ha clipped it in fired her up and good to go. Well kind of, because before that It randomly shows "check engine" baulks and stutters sort of thing so I got it scanned the other day at an auto electricians and he scanned two possible failings, a knock sensor and a pressure sensor. He cleared them and asked me to come back as soon as a fault occurs. At this stage I have booked it in a second time because it returned next day.The recheck is free so thats good.
    At this stage thanks for the advice to check stuff or I would probably have left it and dunno ... yeah thanks!!

  • Nicki Savage Mar 06, 2012

    Hey geoff,
    second test showed the knock sensor needed replacing so I got it done. it still baulks and randomly fouls out wich is a pain. It cost a bit for the sensor so all on hold right now. Do you think it's fuel type cause I don't have a clue what to put in it so I use 95. It plays up more in cold start and running but still does it in warmed mode.can you help me please i am not sure what to do or where to go...

  • Nicki Savage Mar 23, 2012

    Hi Geoff,
    Sorry but I don't know what vehicle brand type means, but... a friend said to me that I have a 'Blow off valve' on it and when i looked at the hoses coming off it they seem fine. One of the attachments is a plastic moulding thing that has tape on it so I took it off and it's cracked bad, so I taped it back on. Will take it to mechanics and see what kind of money cost I'll be looking at and go on from there. I know you wrote more but I have no idea what to do there, do I take it to an electrical guy or a mechanic to get checked..



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Gday mate, well with so little info on vehicle brand type, i can only advise that there is a problem put into the vehicle, causes, not all hosses correctly attached to rocker cover, manifold, on many late model vehicles, the pressure in the rocker cover is part of the trail for the M A P sensor on the manifold, also may just be a sensor connection problem, codes for problems are able to be found with a 'launch' or similar diagnostic computer, vehicle may be in "Limp" mode, a mode the computer goes into to get it home when a problem is encountered by the computer, geoff.

Posted on Feb 11, 2012


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