Ignition analysis diagnoses misfires caused by bad coils, plugs, or wires.

Sudden dips in voltage often indicate unwanted resistance, a short circuit, or a failing component. Time (The Horizontal Axis) The horizontal axis measures duration.

Probing the ignition coil’s secondary side (or using an inductive pickup). The Look: A long horizontal line (dwell) followed by a sharp vertical spike (firing line) that drops into a sloped plateau (burn time) before falling to zero.

The period where the coil charges. Voltage stays low near ground.

Faulty sensor air gap or structural damage to the reluctor wheel.

: Checking the "pintle hump" to see if an injector is physically opening and closing correctly. CAN Bus Networks

Compare your captured waveform against a database of known-good waveforms for that specific year, make, and engine model.