Posted to Technical Discussion Forum on 5/29/2014 13 Replies

[2001 Ford Ranger Edge, Ignition Waveform]

We replaced #6 injector for a dead miss at idle, but still run into random misfire and stumbles under load. This is a capture while its stumbling. While I believe that the rest of the injectors are likely plugged, dirty, etc., I still see this huge spike after the spark burn on #6. Thats the only thing keeping me from suggesting replacing the other 5 injectors. This post is more for opinions and my own education, but I also hate to throw parts at a problem without pretty high degree of certainty. We tried a direct injector cleaning which didn't seem to help. opinions guys?

Michael Gurgainers
Technician/Owner
Elite Automotive Specialists
Sparta, Tennessee, USA