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Old 09-13-2015, 07:54 PM   #1
Bass Fiend
Scooby Newbie
 
Member#: 394230
Join Date: Jun 2014
Location: Basset, VA
Vehicle:
2004 Forester XT
Champagne Gold

Default 04 Forester XT Misfire and Throwing Code

I'm at the end of my rope with this thing. I have a CEL code for P0171. system too lean - bank 1 accompanied by a cylinder misfire in ALL FOUR CYLINDERS. it's not a constant misfire but I have a confirmed misfire in each cylinder. The only time i feel the misfire is at about 65 mph out on the highway and it smooths out around 70 mph. Also when I'm hard on the throttle and when it revs past about 4k rpm and the transmission shifts the whole engine bogs down and loses power for a second before picking back up again. Spark plugs where recently done with nkg plugs so they should have been properly gapped. This has just about driven me insane so if anybody has any input that would be great. Just want to get this taken care of, thanks in advance.
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