1995 Subaru Legacy Hesitant Engine

1995 SUBARU LEGACY
230,099 MILES • 4 CYL • AWD • AUTOMATIC
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ZMUTTAI
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This problem began about a week ago...i have always had the check engine light on and every time i was told its nothing tooo serious but mainly emissions problem with the catalytic converter. I stopped paying attention months ago. So recently, while driving the car would accelerate ok, drive ok but when you ease off on the gas or are accelerating gently under 2500 rpm, the car stutter's and becomes a bit hesitant. Even on the highway while doing 60-ish, when you let go off the gas lightly, it would stutter.
Now, i waited till my gas was below E and filled up with a higher octane, replaced filter (it was dirty) and used lucas fuel cleaner, nothing....BUT, the check engine light disappeared.
I drained the coolant and flushed it....nothing...
Done the oil change about 500 miles ago and air filter about 4000 miles ago.
Replaced the pcv valve a few days ago...nothing

I barely drive it...i work from home.

What could be the problem? It still stutters and hesitant...any suggestions?
Aug 22, 2010 at 12:41 PM
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JACOBANDNICKOLAS
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Have you checked fuel pump pressure? When was the last tune up? Also, is the check engine light still on? Any vacuum leaks?
Sep 2, 2010 at 10:25 PM
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ZMUTTAI
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Havent checked any of those. I may start with a tune up this weekend then see what happens. Will report that shortly. So far all those are suggestions i havent heard from anyone else.
Others told me a bad injector? But could an injector be bad if it accelarates ok?
Other told me spark plugs? I got new ones less than 3000 miles old.
Sep 2, 2010 at 10:54 PM
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JACOBANDNICKOLAS
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You could have a leaking injector, but that usually isn't a problem with these vehicles.
Sep 3, 2010 at 9:43 AM
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ZMUTTAI
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Guess what??
I fixed the problem...thanks for hinting on the tune up. I was sooo worried for a while. After doing all i did upto even considering spending $100 on a new Ignition coil, i ended up replacing the spark plug wires and wallah! It worked...no more stuttering while driving and the fuel consumption improved, gone over 60 miles and the gauge is just a notch below Full.
Sep 12, 2010 at 8:49 PM
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JACOBANDNICKOLAS
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I'm glad you got it fixed. There are so many reasons the different problems anymore, it gets difficult to identify the actuall cause of the problem.

Let us know if you have questions in the future.

Joe
Sep 13, 2010 at 10:27 AM