AlligatorMan

Have a '91 240sx with no codes and pass emissions very clean. Car pulls 23 inHg vacuum at idle. Everything seems to be in check and tuned up with new parts.

Here's the scenario...when I shift (especially when the engine is cold) the car hesitates for almost a full second before it will start chugging along. This happens in all gear but not necessarily all the time.

Any ideas?

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'91 Hatch