Tribute LX 2WD V6-3.0L DOHC (2001)
Figure 13
5. Figures 12 and 13 are examples of problem coils. Replace the coil if the waveform is similar to Figures 12 or 13.
6. The coil is causing the misfire when the peak firing appears like those shown in Figures 12 and 13. Notice the difference in the peak-firing signal when
compared to the good peak signal in Figure 11.
7. Figure 13 shows a more dramatic fault in the peak failure. Most root causes of misfire issues can be identified quickly using the steps outlined above.
Some misfire issues can be difficult making the oscilloscope an important part of your diagnostic toolbox.