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2009 Honda Civic Lx-s
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Discussion Starter #1
So I have a 2009 Civic LX-S. It runs fine. But lately it throws a p0171 code bank one running lean, like once a month. I checked for leaks in hoses. And none. My o2 sensor on the upstream is reading .05ma at idle, I heard this is what it is supposed to read. So now I'm thinking low fuel pressure from fuel pump. I really don't know what else to check. So what do you guys think? Also where do you connect a fuel gauge at on the R18 civic?

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