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Discussion Starter #1
I'm trying to test a coil pack I've retrieved from the car using an ohmeter. So far I've manged to get a reading of about 0.8 ohms from what I believe are the secondary coils, by placing the meter on the two small (outer) metal connectors on the top and measuring resistance across these.
But how do I measure the resistance of the primary coil? Where should I be placing the meter probes? :confused:

cheers,
Gavin
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The problem with testing coilpacks is that the electrical resistance breaks down with excessive heat and when voltage is applied. There is around 30kV on the secondary side so recreating that, as well as 90°C heat could be tricky!
 

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Discussion Starter #3
The problem with testing coilpacks is that the electrical resistance breaks down with excessive heat and when voltage is applied. There is around 30kV on the secondary side so recreating that, as well as 90°C heat could be tricky!
Thanks for the reply. So I guess when the coil is cold you are getting a false measurement (resistance higher than reality)?
 
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