ramp testing Archives - UnderhoodService
VIDEO: Scope Current Ramp To Check Coil’s Secondary Circuit Function

Access to secondary waveform testing is nearly impossible on some modern coil over plug ignition coils. But what if you need to check the secondary circuit function of the coil? The solution might be scoping the current ramp. Sponsored by Blue Streak.

Using Your Oscilloscope: Current Ramp Test Ignition Coils

The diversity of modern ignition coil designs has made ignition oscilloscope analysis more difficult because many ignition coil waveforms deviate from the conventional norm. Consequently, oscilloscope diagnosis shouldn’t be considered a definitive test of ignition coil condition unless it can be compared with a known-good waveform.

ignition coil scope tip