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How do I measure low ohms?

bigjohnson

Regular Contributor
Want to measure primary resistance on a ignition coil but I'm unsure my multimeter will do that.
.05 - .15
How do I do this?
 
Highly likely your meter won't have much accuracy in that span....typically, the primary side rarely fails on a standard ignition coil unless abused.

If you still want to make the measurement, I'd suggest an indirect measurement: add another resistor to the primary, in series, and measure the voltage drop across it when you hook up the resistor and the coil to a battery. the voltage measurement is likely to be the most accurate measurement your meter can make...
 
Actually I bought klein mm400 and took the measurements. I got
.1 for the primary and 256 ohms for the secondary.
Specs
Primary = .05 - .15 and
Secondary = 225 - 325
So I think the coils are healthy
 
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