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Old 01-16-2021, 10:27 AM   #8
Zhen4
Scooby Newbie
 
Member#: 521706
Join Date: Jan 2021
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Pupwagn, did you solve the problem? I am having the same problem although manual car. No codes. Also did all the things you mention here except O2 and fuel filter. Also, I have some hardly noticeable misfire (popping exhaust) at idle when hot. But for me, idle climbs slightly when AC is on. Also when driving at very low speeds and very soft throttle the car is "jumpy", I think it's related to the grumpy idle.
When I start the car (cold or warm) I have noticed that it sounds "heavy" in a way. You don't have to crank it for long but it sounds somewhat sluggish and doesn't fire up as strong and eagerly as my 3.0 H6 does (this is my first 4 banger Subaru so I don't know what to expect really). Battery holds charge well so I don't think it's that simple. Maybe bad ground somewhere?



I have access to a computer to log but I don't know what to look for.
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