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98 forester runs fine for 2 miles than dies!
Posted 26 January 2012 - 04:58 PM
98 forester L
Posted 26 January 2012 - 05:02 PM
Any used ignitor from 90 to 98 (99 Legacy 2.5's also) will work. Might need the bracket as they changed shape over the years a bit.
Posted 26 January 2012 - 05:20 PM
Could also be a bad ECT sensor.
Posted 27 January 2012 - 10:16 AM
The fact that it runs fine when cold, but acts badly when warm is your clue.
It is not hard, and your symptoms are exactly what mine were. New front 02 sensor fixed it. My experience below:
>> I have a 2001 Forester L with 85k miles on it. I have been chasing an intermittent hesitation under load problem for the past year since 80k miles. Only occurred when engine was warm. The front 02 sensor had been replaced once at 40k miles. I suspected it again this time, but since the only codes thrown had been cyl's 2&4 misfire (p0302 & p0304) I assumed it must be ignition related. So I replaced plugs and wires 8 months ago...no effect. Did the dollar bill test over exhaust pipe, it was fine. Misted the coil, no sparks. I mentally ruled out the fuel filter since it only happened when the engine was warm. Finally, a week ago while cruising on hwy at 65 mph, I felt the hesitation again (I wasn't even accelerating this time) and a new code was thrown....p0172 (bank 1 too rich). AutoZone read it for me, I described the symptoms to the guy and asked if he thought it might be the front 02 sensor. He said, "absolutely." So I decided to replace it next. Cost me $100.75 incl tax for the oem part# 22791aa00a from Cityside Subaru. I asked the Parts guy there if his experience was that this model engine needed a new front 02 sensor every 40k miles. He said, "no, these sensors are good for 100k miles." Well, bullsnot on that. I replaced the new front 02 sensor in 1 hour reaching from the top over the passenger side of the engine using an adjustable wrench. Be sure to use the thread lube so you can get it out easily next time.....after another 40k miles. I took out the air channel assembly first for better access. That seems to be the fix. No further hesitation since. Car runs like new. Replaced on 6/2/7 with 84,922 miles. (Perhaps RockAuto parts Bosch replacement sensor works well? It is cheaper) >>
Edited by unibrook, 27 January 2012 - 10:21 AM.
Posted 27 January 2012 - 10:26 AM
I second the ignitor (although they rarely fail) they are cheap becasue they rarely go bad. If you need on I have one here.
Another thought is alternators cause weird problems on Subaru's. I usually notice the high RPM going away first. If you let the car set a little and it has a good battery it starts back up, top end is there again, then top end keeps coming down the further you drive (since youi're rally running off of the battery). Often with these weird alt problems the BAS and another light come on (not CEL or Battery ironically).
Any chain parts place wil ltest the alt for free.
And the ignitor is an easy swap.
Posted 27 January 2012 - 12:20 PM
Posted 27 January 2012 - 11:50 PM
Try unplugging the O2 sensor as well.
Posted 28 January 2012 - 08:51 AM
Posted 30 January 2012 - 03:34 PM
Have you replaced your front Oxygen Sensor yet?
Posted 30 January 2012 - 10:58 PM
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