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No worries Digger. I really appreciate all of the additional information you provided. I was just being cheap in ordering only two packs thinking they couldn't all be bad. Maybe a good lesson for...

Well it turns out it was the coils after all. Initially, I thought the p1312 code meant a misfire on position 1 or 2 (read that somewhere). so I only ordered 2 new coils and tried them in position...

Thanks guys. So checked code at Autozone and the only code is P1312 - Position B misfire. Both of you are saying that it could be fuel related. Fuel pump or fuel pressure regulator. Should I...

I've searched endlessly through the threads and can't seem to find anyone with this exact issue. My 2007 9-3 2.0T shudder's/misfires but it only occurs when I am at high speeds 70mph+ and I...

I'm having a similar issue with my 2007 9-3 2.0T but the issue only occurs when I am at high speeds 70mph+ and I accelerate pushing my turbo. As soon as it hits the red, the engine starts to shudder....