Hi everyone,
Our 2005 XC70 AWD 2.5T with 190k has been running rough and the check engine light came on. I had codes checked and cleared by our mechanic. He said that misfires in cylinders 3 & 4 were the issue. I installed coil packs, Volvo spark plugs, and a Wix fuel filter and had codes checked and cleared again. Codes P0101 (mass or volume air flow) and P2096 (post catalyst fuel system too lean) were cleared this time. I can't spend much more on this, but was thinking that the next step should be the air mass sensor. Any suggestions would be appreciated.
Thank you,
Marc
2004 S80 231k
2005 XC70 190k
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