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05 s60 p0171

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05 s60 p0171

Post by Randall0208 » Tue Feb 26, 2019 6:01 pm

Hi there, I got a check engine light today in my 2005 Volvo S60. It was code p0171. After doing some research it is apparently running lean. Some backstory to my vehicle, I bought it for $450 a couple weeks ago because it had a cracked oil pan. I used some high temp jb weld and it's held great no leaks. The car prior to me buying it had sat for 2 years and when I got it had a full tank of gas. I'm only a high school student so I haven't driven it much, its now on 3/4 of a tank of the bad gas. I just now got the lean code, I'm guessing the fuel injectors are dirty from the bad gas, or maybe some moisture froze, maybe the fuel filters clogged? I've been thinking about putting some fuel system cleaner through it to help it. If anyone has any thoughts please let me know.

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Re: 05 s60 p0171

Post by abscate » Tue Feb 26, 2019 8:08 pm

Track down the vacuum hose diagram and look at all the hoses. That code is usually generated from a leak somewhere.

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