Reply to "Seeking Advice Concerning How To Correct An Engine Misfire"

Sig, don’t know your setup so I don’t know if this is a possibility. I once installed a new spark box into my race car and “neatened “ up the wiring around the spark box and dizzy. Everything seemed to run fine until I got on it once on the race track. After checking everything I concluded that the new spark box was bad. It felt like the engine was hitting the rev limiter early. We changed the spark box WITHOUT neatening up the wiring and the engine ran without issue. Before the next race I had the new spark box checked and reinstall it WITH neatened wiring. Same thing happened misfiring under load. I went back to the pits and finally realized what I did. Trying to keep everything neat and tidy I mistakenly bundle the signal wires from the dizzy and the wires to the coil for about 12” or so. I separated them and the misfire was gone. A lesson well learned.