Secondary fan comes on earlier than they should @ middle mark with a/c on (according to Shbox) & hardstart with rpm & speedo jumping.

From my understanding the 2nd fan on a 93 should come on at their 1 & only speed -full speed @ 235. It actually Comes on when sitting & idling at random times between the ranges of 200-230~.

and had a hard slow start & once it was started the speedo & rom gauges went crazy.