Any way to test the Coils ?
Any way to test the Coils ? At what point do we need to replace coils ?
I wanted to test them and see if they are working 100%.
Im doing a spark plug/wires change so its the perfect time.
Thanks for any help
I wanted to test them and see if they are working 100%.
Im doing a spark plug/wires change so its the perfect time.
Thanks for any help
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
Use a spark tester... it looks like a spark plug with a ground clamp on the side of it... you clamp it to a suitable ground and run the plug wire to it... it has a large "gap", the spark should be able to jump the gap easily, looks big/blue/fat if it's good.
Or if you know someone with a high-resolution automotive oscilloscope (and a capacitive secondary probe and a current clamp probe), you can get him to scope your secondary kV and the primary current... the waveforms will show if the coils are working right or not.
Or if you know someone with a high-resolution automotive oscilloscope (and a capacitive secondary probe and a current clamp probe), you can get him to scope your secondary kV and the primary current... the waveforms will show if the coils are working right or not.
