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  1. Rough idle? P2135 and P1681 codes? Hesistation? Surging? How I fixed it.

    9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    So about a month ago, I noticed my car didn't have as much power as it had when I bought it. It seemed kind of sluggish, and seemed to hesitate and surge a bit, but I thought nothing of it at the time since it's very cold out. After a while it got worse... and worse... and even more...
  2. Check Engine Light Codes, P1681 & P2135

    9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    Check engine light only came on in the past month or so. It is intermittent and will come and go on a day to day basis. Longest it has stayed on is 2 days. Lately it will even go into LIMP home mode; which ABSOLUTELY SUCKS! Car is a 2010 9-3 2.0T. Car has had the following symptoms and they...