Car starts slow, chugs, And chugs while going incline or accelerating. - Subaru Outback - Subaru Outback Forums
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post #1 of 12 (permalink) Old 04-25-2019, 06:36 PM Thread Starter
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Car starts slow, chugs, And chugs while going incline or accelerating.

I have a 2001 Subaru Outback Limited.
And recently i have been experiencing some issues with not just starting the car, but accelerating.
Due to the issue, i have to drive my moms 2017 Forester, since my cars issue's are too dangerous.
The check engine light flashes rapidly when i try to accelerate, i have to baby it.. which in turn makes other drivers around me irate. It's been less than a year since i changed Alternator, Battery, and Starter, so i'm assuming it's Spark plugs, Fuel pump or something else? Any help would be much appreciated thank you. Oh and i have over 163,000 miles (changing oil in a week As says on Valvoline sticker)

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post #2 of 12 (permalink) Old 04-25-2019, 07:55 PM
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Get the code(s) read.

What is your car telling you is wrong?


Have you considered the Google search bar at the top of the forum?

Ours:
2002 Outback wagon 3.0 L.L. Bean no more: "Mal" 135,000 and counting.
Cloth interior swap. HIR1 high beam upgrade. Yellow Lamin-X fog light film.
2006 Outback 2.5i wagon: "Professor Sprout" 97,000 and counting.
HIR1 high beam upgrade.

Family fleet:
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Previous:
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post #3 of 12 (permalink) Old 04-25-2019, 08:00 PM
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codes:

you can read them with a phone and torque pro for android, with a $15 dongle. (or whatever app is your flavor with a apple phone...as I don't know)

or with rom-raider. (free software on a windows laptop, and a $10 VAG cable)

the flashes are misfires. such could be from a front o2 sensor, and I have had that specific problem, (and may have it again).

see this current thread and my old thread that is linked in it. (our cars have the same engine ...exactly)
https://www.subaruoutback.org/forums...gy-spazzy.html

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post #4 of 12 (permalink) Old 04-25-2019, 08:14 PM Thread Starter
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I let my budddy who works overnight borrrow mine.. ahh, bad timing.
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post #5 of 12 (permalink) Old 04-25-2019, 08:16 PM Thread Starter
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Thanks, looking into that site now, i have an O2 sensor in the box i still need to install, but i'm no mechanic.
I had to use the torque app to clear the 02 check engine code before, but i guess it got worse or something.
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post #6 of 12 (permalink) Old 04-25-2019, 08:23 PM
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Quote:
Originally Posted by Steves86 View Post
Thanks, looking into that site now, i have an O2 sensor in the box i still need to install, but i'm no mechanic.
I had to use the torque app to clear the 02 check engine code before, but i guess it got worse or something.
grades seem to exacerbate such issues as the car is under load and makes for good testing, when no one is on the road with you.

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post #7 of 12 (permalink) Old 04-25-2019, 08:29 PM Thread Starter
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Quote:
Originally Posted by eagleeye View Post
grades seem to exacerbate such issues as the car is under load and makes for good testing, when no one is on the road with you.

My moms driveway is on an incline, i did park while it was level, but as you drive up, it inclines more, that's when it hiccups. But if even if i slowly put my foot on the gas, after trying to go 55mph or push harder it does the same. Good advice, This is why i don't drive it til fixed, off/on ramps make it too dangerous to drive.

I found this part my brother gave me.
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post #8 of 12 (permalink) Old 04-25-2019, 08:35 PM
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2001? Perhaps the fuel pump o-ring/cap problem, i.e., insufficient, but not totally lost, yet, fuel delivery/pressure leads to hard starting, and misfires under load.

Perhaps a fuel pressure test should be on the list of to-dos.
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post #9 of 12 (permalink) Old 04-25-2019, 08:36 PM
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Quote:
Originally Posted by Steves86 View Post
My moms driveway is on an incline, i did park while it was level, but as you drive up, it inclines more, that's when it hiccups. But if even if i slowly put my foot on the gas, after trying to go 55mph or push harder it does the same. Good advice, This is why i don't drive it til fixed, off/on ramps make it too dangerous to drive.

I found this part my brother gave me.
that should be a front one, $141 or so,

I buy Densos that work well with the subaru specs. (and maybe the OEM supplier). $55-70 or so from rockauto / amazon.

fronts can be a real bear to get out, ...needs some heat and swearing. (rears get changed more for the p0420 code)

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post #10 of 12 (permalink) Old 04-25-2019, 09:13 PM
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@Steves86 Is this happening only when the motor is cold?


RIP 96 Legacy 2.2 Thanks for 380,000 miles. (4EAT lost reverse)
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