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  1. Focus ST Discussions
    Hello, First time user of this forum. I did a ton of searching on this issue and I cant seem to find anything similar. I bought my 16 ST3 recently and the check engine light came on for both p0234 and p0299. over boost and under boost. I checked all the intake piping and vacuum lines going to...
  2. Focus ST Electronics
    I bought a used 2013 St3 not that long ago. I am new to driving manual so I went to a parking lot with a friend to get some pointers and tips on driving the car. We noticed after that sometimes after stalling, my car wouldn't turn over and we had to use a jump box to get it working or...