The TA398 COP and signal probe from Pico Technology is the easiest and fastest non-intrusive way to check coil-on-plug ignition coils and spark plugs.
Like distributors, spark plug wires are starting to disappear from cars. With the new COP ignition systems the ignition coils are connected directly to the spark plugs — eliminating the need for the spark plug wires. With no high-voltage spark wires, a COP probe is required to be able to pick up the secondary ignition waveform.
Unlike the BNC TA204 COP Probe, the connecting lead is integral to the TA398 BNC+ COP Probe, therefore no TA033 (BNC to BNC lead) is required.
This lead is fitted with a PicoBNC+ interface, allowing it to be recognised by the software for auto-configuration. The lead requires a PicoScope featuring the PicoBNC+ such as the 4225A or 4425A.