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p0300 p1312

  1. 9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    Hey Team, I'm experiencing some rough misfiring during acceleration and my CEL is on. I have been scouring the forums for fixes to these various codes, all of which seem plausible but can have widely different fixes. I have been plagued with cylinder gasket leaks and I have changed all of my...
  2. 9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    I just swapped out the engine on my 03 saab 9-3 due to my previous blowing up, anyways I fired this one right up and ran fine but after about 20 miles it started misfiring at idle and hesitating when pressing the gas. I pulled the code and its p1312 and p0300 which p0300 is a multiple misfires...
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