Multimeter testing coilpack
I read and watched YouTube and am still mostly clueless.
Reading that I need to clean oxidation off the tips and not having sandpaper handy, I used a knife to take off a thin layer. What I believe to be true: When not touching tips to anything, the gauge reads infinite. Touching the tips should read zero or close to it. Tested the coils again and had the same results as below, which makes me think at least the left coil is blown. I am not sure how to interpret some of the numbers to see if they are in operating range :noob: For example, if I set the meter to read 2kohms, and it shows ".4699" does that mean 1.4699?? Or if I set it to 2M, and it shows ".1182" wtf does this mean? Or if I set it to 20K, and it reads "10.294" does it really mean it is reading 10.294Kohms? I believe tests 1 & 2 of left coil (below) are reading 'infinite.'. This ---- bewilders me. Please school me.
Originally Posted by 94mx5red
(Post 879627)
Please look at the photos and tell me if I have this contraption set correctly (doubtful).
Here is the test I am doing: https://www.miataturbo.net/attachmen...ine=1336861962 Here are my results: Left coil:
Tests 3 and 4 on the left: https://www.miataturbo.net/attachmen...ine=1337554591 https://www.miataturbo.net/attachmen...ine=1337554591 Tests 1, 2, 3, 4 on right coil: https://www.miataturbo.net/attachmen...ine=1337554591 https://www.miataturbo.net/attachmen...ine=1337554591 https://www.miataturbo.net/attachmen...ine=1337554591 http://i917.photobucket.com/albums/a...d/f7065b40.jpg |
Manual-ranging meters can be difficult to use properly if you're not intimately familiar with their operation. I might suggest that you look into a simple auto-ranging meter. We in The Business use auto-ranging meters almost exclusively, just because they're faster and easier, and you don't really sacrifice any accuracy with them.
http://www.radioshack.com/product/in...dsInSession=1# http://www.harborfreight.com/5-in-1-...ter-98674.html That said, with a manual-ranging meter, you set the dial to the value which is closest to, but greater than, the value which you expect to measure. So with that meter you have there, if you anticipate a resistance of 100k on a given circuit, you'd set the dial to the next-highest number, which is 200k. If you expect a voltage of 14v, you'd set it to 20v. And so on. It's like the Price is Right in reverse. You set the dial to whatever value is closest to, but not less than, the value which you expect to measure. So a setting of 20k means "I can measure values up to, but not greater than, 20k." When dealing with an unknown value, you simply start at the highest dial setting and work your way down.
Originally Posted by 94mx5red
(Post 880127)
For example, if I set the meter to read 2kohms, and it shows ".4699" does that mean 1.4699??
https://www.miataturbo.net/attachmen...ine=1337554591 Or if I set it to 2M, and it shows ".1182" wtf does this mean? https://www.miataturbo.net/attachmen...ine=1337554591 Or if I set it to 20K, and it reads "10.294" does it really mean it is reading 10.294Kohms? |
Props Joe, thanks!
New measurements: Left coil:
Right coil
Comparing to this (only diagram I can find on how to test the 99 coils) diagram, I believe I have bad coils causing my no start condition. |
Hi Is 3.19 and 3.13 too high for tests #2 and #3 ?🤔
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Searching around the internet I found Testing VW with a Multimeter, this helps me pick up things as a newbie..
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