Hey everyone, I brought my pico and laptop home this weekend to practice and I was taking some "good waveforms" last night on my 2000 toyota 4runner with the 2.7. My car runs just fine, no misses, but I had a hard time getting a consistent secondary ignition pattern with the high tension leads on the scope. In fact, I actually squeezed the clamp and tilted it to get a better pattern on some cylinders, sometimes that made a difference, sometimes it made it worse. I planned on taking a plug out today, while my car is cold, and closing the gap and also opening the gap so wide that the plug can't fire, to see what some known "bads" look like and save them. But if I cant get a good baseline with my skinny wires, what is the point? Has anyone also experienced this? I have stock toyota wires and there is a huge gap between the wire and the lead clamp. If I hold it just right, I can get a good waveform, but that simply isn't an accurate diagnostic tool.
Any thoughts anyone,