I'd say fouled plugs, had the similar symptom with my old WRX shitter so I left it sitting for 3 yrs, actually got it going on the weekend & after going through everything else it was the plugs.

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.

He are very good at English.

Also, AFM are broken. Replace.

If it 99/00 WRX/STi Air Flow Meter Contaminated.

Buy new Subaru - $160 ish bucks.

Do no use oiled filter on this model EVA. Replace with original Subaru paper filter.

Ballsac man should listen too - he has big weapon!!!

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"You can turn your back on a person, but, never turn your back on a drug. Especially when it's waving a razor-sharp hunting knife in your eye." - Raoul Duke

rite ay cuz!

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...He said Smooth Bee the skins is fat
I don't beg cause I'm not in begonia
I dress warm so that I won't catch pneumonia
My rhymes are stronger than ammonia
I'm a diamond, you're a cubic zirconia