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Legacy Issues
Maybe someone here with some mechanical background can help me out. Basically, my Legacy is undriveable. It's been sort of a progressing matter, getting worse up until the past two or three days where the car is not driveable.
Car: 1991 Subaru Legacy L AWD 2.2l MPFI 151,000 miles Symptoms (all occur at or close to normal operating temperature; none occur when car is cold): Unable to idle Randomly dies out while driving along Bogs to the point of stalling out when trying to pull out onto a road (ie, I press on the gas and the car just stalls) After said point of stalling, the car will refire, but then just shut off At some points, it is completely unresponsive to the throttle (ie, I press on the gas and the car does nothing...except shut off; part of the shutting off at road speeds) What I have replaced: Knock Sensor, Coolant Temp. Sensor, Plug Wires, Fuel Filter, Plugs. I have reset the ECU. And part of the reset is that you have to make it 'relearn', yet when it gets to operating temp, the car just stalls out when it's idling there (car is supposed to just idle until it reaches operating temp to 'relearn'). The car did throw a code before I reset the ECU for the MAF (which I have on order), but since the reset, it hasn't thrown that code. So, what's wrong with it? I hope that the MAF fixes it, but I'm hitting up all the forums I'm on to see what other people may have in mind (here especially because there are some ASE certified techs on the board). Thanks in advance, Jason |
I had the same problems after I replaced the timing belt. Found out I was one tooth off on timing had it fixed and problems went away.I hope this helps
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intresting thing about these cars... unplug the MAF and see if the problems go away... (it will go in to a fail safe which runs off of set paramaters insteed of what the MAF is telling it) and check to see if your air filter is in right... trust me i have seen these problems before because the air filter was in wrong...
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bad fuel pump? I had a car that would run fine when cold but after some use the think was a total dog. The FP would lose pres. after it was run for awhile and...well you get the point. :p
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I'd just wait for the maf... many 2.2s won't even start when they go bad.
I can't remember if what suby fan says is true, but you could give it a shot. I think last time I tried that on a 2.2 it didn't work, but I could be mistaken. That car needed a maf, and acted as you described... good used maf made it run like a top again! |
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I thought fuel pump as well at first. But, I'll be damned if it isn't one of these sensors. I've been told though that usually, if the fuel pump is crap, it just stops working, it doesn't kind of crap out on you, but I may have one like you have. I really hope it's not a timing belt. I can't afford that job. |
One of my old GL wagons acted like that. The cat was so clogged that when it got hot, it completely blocked off the exhaust...
Loosen the bolts in the exhaust in front of the cat, that will allow the exhaust gas to get out even if the cat is clogged. It will be loud, but it's a cheap way to see if that is the problem. |
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In fact one of my 2.2 soobs needs a cat now, and acts like it wants to stall while leaving the driveway. I just have not had the time to deal with it yet. it should have thrown a code for it before getting that bad, but who knows. Make this your next item to check for sure! |
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Seems to have been the MAF. I put a known good one on and the car drives like brand new.
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I figured...
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Glad to here you're rolling again. It is amazing how touchy the 2.2 is with the MAF! :cool: |
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