FIG. 1 is a top, rear and left side perspective view of a portable engine diagnostic tester showing my new design, with the cover in an open position;

FIG. 2 is a top, front and right side perspective view, with the cover in an closed position;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is a front elevational view;

FIG. 6 is a rear elevational view;

FIG. 7 is a right side elevational view;

FIG. 8 is a left side elevational view;

FIG. 9 is a cross-sectional view taken along line A--A of FIG. 1; and

FIG. 10 is a cross-sectional view taken along line B--B of FIG. 2 thereof, with the cover in a closed position.

The cover shown in FIGS. 3-9 is in an closed position.