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Try switching from whatever fuel you are using now to premium fuel - I'll bet you get better results. Have a lot of customers trying to save money these days in their higher perf engines (BMW, etc) trying to run mid-grade, etc, experiencing cold misfires. I'll bet that's whats happening here. If that doesn't do it, then your fuel pump is prob getting weak.

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13y ago
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Q: What causes a cold misfire in a Infiniti I30?
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