we are thinking it actually might be gaskets before the o2 sensor on the left exhaust Header. We haven't done a smoke test of any sort. But getting to injectors would be a monumental task. We are going to get under the car and check all gaskets and seals. Because it Chugs and misfires hard in the cold morning or when the car is cold, but starts to even out and the misfire dissipates once the car is warm etc. Maybe the metal expands and closes the gap, etc etc.
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