User Manual

Cartridge coils

This system can only be tested if you have the same number of extension leads as coils within the

cartridge coil-pack. The cartridge coil-pack is fitted directly over all the spark plugs and lifts off in one

unit.

1. With the ignition turned off, disconnect the coil-pack from the spark plugs. This will inevitably

require the multi-plug to disconnected and reconnected. To aid this operation it may be worth

spraying the plug with some release oil to prevent any damage to the release tabs.

2. Once the coil-pack is disconnected from the spark plugs and has its multi-plug refitted, place an

extension lead between each of the spark plugs and the coils. Ensure there is a positive ‘click’ into

place at both ends and the correct lead goes to the corresponding plug and coil. If for any reason

there is not a secure fit then the test lead should not be used.

3. Ensure that any leads and the coil-pack are not resting on any components that will get hot or

rotate.

4. If the coil-pack was secured to the engine by a retaining bolt then fit the ‘safety earth’ lead to the

coil-pack using the bolt supplied and back to the cylinder head. If for any reason this is not possible

the test procedure should be terminated.

5. Double-check all connections before attempting to start the vehicle’s engine.

6. Connect the HT pick-up from the oscilloscope kit to one of the extension leads select one of the

following tests from the automotive drop down menu:

 Automotive | Ignition | Multi COP Unit | Secondary 4 Cylinders,

 Automotive | Ignition | Multi COP Unit | Secondary (Positive Fired),

 Automotive | Ignition | Coil on Plug | Secondary (Negative Fired),

 Automotive | Ignition | Coil on Plug | Using the HT Extension Lead.

Note: it may be possible that the coil-pack is in fact wasted-spark, in which case on a four-cylinder engine

two of the plugs will fire positive and require you to select positive-fired from the automotive menu.