Hey everyone, I have a bit of a problem with my Legacy. I just pulled out of my parking spot when I hit the gas and the car chugged a bit (almost died). Immediately I put it in reverse and backed up were it continued to run really rough. I hit the gas one last time to rev it up and it died. The past couple of days I have tried a few things: -Replaced the MAF sensor -Replaced the Ignition Coil Pack -Replaced the fuel filter -Replaced the Ignite switch(not really sure what it's called. It's located just behind the throttle body on the firewall with one electrical plug connected to it.) -Replaced the spark plugs. When I plugged the "test connectors" together and turned the key ON the CEL just kept flashing. I hoped it would give the code but it didn't. Any help is much appreciated.
I see you're in Duluth. I could probably come take a look at it tomorrow after work (5ish). pm me your phone # and I can give you a call when I'm done.
ARG. Well I figured it wouldn't be the fuel pump. When I was replacing the fuel filter I left the "Out" hose off and held it over a bucket and turned the key on to initialize the pump. It spit out fuel but only for 2 seconds or so. :???:
An offer definitely NOT to be refused: Chux suggesting that you PM him your phone # and he'll stop by to see if he can figure it out. Welcome to MnSubaru, good luck sorting it out, and PM Chux if you haven't already!
I accepted last night. I've been just waitin on the call. Staring at my phone isn't making time go by faster.
so....spent a couple hours tinkering with it tonight. I'm stuck....so I present our findings to the committee.......hopefully someone else here can get us pointed in the right direction. It cranks over very unevenly...like it doesn't have compression on all cylinders. sounds like an EA82 subaru with a broken driver's side t-belt while cranking (compression on 2, but the disty is driven off the driver's side cam. so no spark....). we pulled the end tbelt covers off. the belt looks to be in good shape, and timing is on. Fuel pump is coming on as it should. it sort of fired once, but not enough to start. we borrowed an OBD II reader from Advance auto. 3 codes came up. MAP circuit, misfire cyl 1, and catalyst below efficiency. obviously the catalyst thing isn't anything to worry about. He says the CEL has never flashed while driving, so I'm assuming the misfire code has been a result of the cranking and stuff....since it was running last. so, we un-plugged the MAP (the '86 wagon I swapped last year with a '96 2.2 ran fine for about 1k miles with the MAP un-plugged...just crappy mileage). cranked for a minute. no change. un-plugged the MAF. after cranking for a minute. it started, and idled very smoothly. tried revving it, and it quit immediately. plugged the MAF back in, and it started again, idled very smoothly for awhile longer. but again, quit as soon as the throttle was touched. We tried a number of combinations of the MAF plugged in and not. and were able to get it to run. but as soon as you touch the throttle, it stumbles and quits. Suspecting a bad MAF. we threw both of his (he had a spare) in my car. ran just as it always has. So. it isn't the MAF itself. but when it's unplugged, and the ECU is in limp mode, the problem is lessened. So, what exactly changes when in limp mode? is it just fuel maps that go to default, or does it effect ignition too. my current thoughts are: TPS CAS (either one) fuel pressure regulator Gary. I posted it on Ultimate subaru. if you'd like to watch the thread and/or pitch in: http://www.ultimatesubaru.org/forum/showthread.php?t=104534
Coolio... About 40 mins after you left, Chux, that one guy came back and hooked it up to his computer. He seems to think it's the MAP sensor... So yep.. I'm frozen solid.. time to thaw in front of the heater. Thanks again to Chux and everyone for their input.
If you unplug the MAF AND the IAC it will run, and keep running if its a MAF problem. A fuel pressure regulator would make it hard to start all the time, even with the MAF unplugged. A tps sensor might do this sort of thing, I know it does something like this on a 6 cyl when they go bad...
