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Hey everyone. So I just bought this Subaru last year from a dealer at 64k. Drove perfectly fine. Up until recently I moved down to Florida from NY so the drive took out my wheel well on the right and I thought maybe some dust got kicked up into the intake and messed with the MAF so I cleaned both out. I did this because I wasn’t getting a good steady acceleration and it was bucking around 2k-3k rpm. I replaced all the spark plugs with the NGK ones Subaru recommended. Anyway
Now it is hesitating like crazy and now misfiring with a code for the 4th cylinder and O2 sensor. 🤦🏽‍♀️ I know I didn’t cross thread the plug and I double checked the coil pack made sure it was on properly. What the hell am i missing? I’m bringing it in tomorrow for diagnostics but I’d rather not spend all that money. I also have a power train warranty. Any ideas?!
 
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