Knownpick Posted December 15, 2015 Share Posted December 15, 2015 I have a 2009 Subaru Legacy 2.5i Special Edition. I was have trouble about 3 weeks ago and my car randomly misfire from time to time but not for long so I didn't pay much attention to it . Then as time went on it became worse and worse and I drove it around for 3 days with misfires on cylinder 3 and 4. Then I decided to replace wires(Import Direct) and sparks plugs(Ngk Iridium) and it still misfired. I figured out it was my ignition coil and replaced it with a import direct one, about 3 days later. It drove fine for about a day and there ways a horrible loss of power. The car sputters on the low-end and struggles to rev high and engaged with the drive train on high revs. A new noise came out my car it sounded like the valve lifters. I figured my valve cover gasket on the passenger side was going bad so i replaced it on the next oil change and i did but the problem was still there and i struggle to go up hills. I just ordered a denso MAF sensor and a new perrin panel air filter and if those don't do it, i'm gonna take it in to a mechanic. I was just wondering if anyone could shed their knowledge and insight on this problem. Thank You Link to comment Share on other sites More sharing options...
OhNineGT Posted December 16, 2015 Share Posted December 16, 2015 Maybe a cat or an O2 sensor? Link to comment Share on other sites More sharing options...
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