Pico MI074 Secondary Ignition Pickup

Due to the high voltages involved in secondary ignition systems, it is not possible to make measurements by direct connection. Attempting to make a direct connection will almost certainly damage the measuring instrument.

The MI074 is a capacitive pickup that simply connects around the insulation of an ignition circuit component such as a plug wire. This avoids the need for direct connection.

The MI074 comes with a shielded 1.8 m (6 foot) lead. It is suitable for use with conventional ignition systems and most HEI and DIS systems. Our library of Automotive Waveforms contains example waveforms captured using a PicoScope automotive oscilloscope and the MI074.

Although ideal for use with a PicoScope automotive oscilloscope, the MI074 pickup can also be used with most other makes of oscilloscope provided they have a waveform invert option.

Typical examples of use:

• Confirmation of secondary ignition events
• Can be applied to a variety of HT ignition systems, conventional, wasted spark, COP and cartridge-style ignition
• Hands-free misfire detection (unlike the COP/Signal probe)
• HT integrity tests
• Confirmation of coil on plug serviceability under load