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Testing Coil Pack

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Still tryin to get my 2001 ka running. Starts momentarily then dies??? Haynes manual troubleshooting suggests vacuum leak on manifold or ignition coil breakdown. Checked ICV ..looks Ok not carboned up. O ring seals on ICV look a bit dodgy..will replace these. Have replaced plugs and fuel filter. Pump sounds OK (runs for a couple of seconds when key turned).

My questions are...

What are likely sources of vacuum leak?

Can I test coil pack by taking out plug and then attaching to lead and holding a couple of mm off engine block to see if spark arcs to block? I know this works with traditional ignition (coil + distributor) but just want to check that I won't damage coil pack or ECU using this test on the Ka.

As always your help is appreciated.


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