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  1. General Volvo Discussions
    I have a cursed C30 that just won’t die. i own a 2008 C30 T5 with 170k miles with a manual transmission. I live in Northern California and have the car listed for sale but I need the car smogged before transfer of title. The car currently has a check engine light for a misfire but only on...
  2. R Forum (2004-2007)
    https://www.roadandtrack.com/car-culture/a37262122/what-californias-new-ecu-law-means-for-tuned-cars/ As of July 2021, smog tests in CA began including a check for modified ECU software. I'm not sure how it is elsewhere but in CA, OBD-II cars no longer get the sniffer test, so it's based...
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