My current issue with my 50i is when I try to accelerate while going past 70mph (for instance to pass someone), the car shuddering intermittently, almost as if I am going over bumpy road. I used my OBD scanner and there are no error codes, at least not yet. I presume its the plugs. I was going to try different gas (typically use 93 Costco) and or use Techron complete cleaner?
Last edited by sbkim; 03-02-2019 at 06:53 PM..
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