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2007 Mazdaspeed3 Mileage: ~60k (JDM about 3mo ago) Location: Idaho Concern: My son called and said he couldn't get it to run right. He's up at college and without tools/space to work on it. So I just towed it home for us to work on over Thanksgiving break. Meaning I'm under a time limit...

Ok. I don't think the engine swap had anything to do with this but... I've been burned once assuming on this project already. Car is running great now except brakes are stupid hard to push. I read that there's a check valve in the line. I pulled it to troubleshoot and found what looked...

We just swapped in an ms6 engine into our 2007 ms3. It's running but we get an p0091 code. We haven't moved it out of the garage yet, so just idling with some revs. Totally new to mazdaspeed but not to working on cars. I'm looking for ideas of what to look for. I have torque pro and able...