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  1. R

    p0300 only when under boost

    2007 mazdaspeed 3 130,000 miles Cai, cheap-o dp/racepipe Corksport tb Tuneless P0300 still fighting changed spark plg twice maf, map, ckp, cmp, new turbo, timing chain and vvt stuff and 02sensor, injector seals cleaned, battery, changed oil several times and motor mounts. I just did a...
  2. R

    P0011 & p0012 how is this possible

    Year/Make/Model:2007 mazdaspeed 3 Mileage:130k Location: pnw Concern: looking for info on cel's DTC's: p0011, p0012 Modifications cai, catless dp, cs injector seals. ECU/Tuning Software:none Tuner:none Is the concern intermittent? No Can you duplicate the concern?yes Recent Repairs:timing chain...
  3. R

    P0300 misfire quiet backfires

    Just purchased 07 ms3 and I bought knowing it had some issues. First one was tb connector so replaced that then after I started car i got p0330 so I checked out the crankshaft sensor connector cleaned it and code went away until the p0116 popped up. After checking for open or short circuit with...
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