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P0101 and P2188 codes

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

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hu5ker555
Posts: 182
Joined: 30 November 2011
Year and Model: 2008 S60, 2015 S60
Location: Kansas
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P0101 and P2188 codes

Post by hu5ker555 »

2008 S60 2.5T, 155k miles

Engine system service light came on this week. Car running just fine, no hesitation, steady idle. Had the codes pulled. Cleaned the MAF (it wasn't really dirty). Replaced the air filter (it was dirty). Codes came back. Started to wonder about the PCV. Checked the dipstick...no smoke. Did the balloon/glove test on the oil filler...no inflation.

Should I worry? Not sure. One concern I do have is that I checked the oil last week and it was low. Don't recall this car ever using oil before. No oil spots in the garage, everything under the car was dry. Am I starting to see some engine wear? For now I'm going to put some AT-205 in the oil (in case there's a minor leak somewhere, Scotty Kilmer likes the stuff) and check the oil level frequently.

Any suggestions?

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