Ignitor testing?
 

Is there an easy way to test the stock igniters on my gls-se using a simple multi-tester or voltometer?

I got mine tested at the local Advance Auto Parts, and the guy didn't seem to know what he was doing. I'd like to see if I can confirm the igniter failure as my problem. Thanks for any help.

Check out my ignitor tester thread:

https://www.rx7club.com/showthread.p...ignitor+tester

Rich

here ya go.

You need a little more than a muti meter to test the ignitors.

I was under the impression Advance could only test domestic systems. If they did have the correct adapters for a j109 and it passed I would not see any reason for further testing. If it failed, then I would bench test it myself.

I used to use the method outlined in the FSM but it gave me false readings. I have had ignitors pass the FSM test but fail me when put back in service. Then I made a bench tester using a spare dist., coil, plug wire, spark plug and a 12v source. This better duplicated its application and I could see a difference in the spark produced to the plug. The ignitor in question passed the FSM test method but when I used my new bench test, it produced a very weak spark to the plug. Put in a known working unit and it produced a strong zapping spark.

Wish I could take the credit for this testing but was a result of a search that Jeff20b had posted.

I saw that diagram in a book. I don't want to build a circuit just to test it. I posted a recording of the tach during start up. If it doesn't spike, isn't that enough to know?

What's the difference between the trailing and leading ignitor? Which one is which? I was told the trailing ignitor is the one that should be replaced. Which one is that?

I bought two ignitors years ago in anticipation of this happening someday. Do I replace both? Or do I need to replace just the leading or trailing?

Thanks for reading.

It is very simple to make. Otherwise, bring it over if your close to echo park/silver lake area and i will test it for you

@Siraniko I'm about 45 - 60 min away (depending on traffic.) I really appreciate the offer but I have a couple used (and tested) igniters in my spare parts bin so I'm going to just start swapping out parts until the problem is solved. (I hate this way of troubleshooting!)

Make sure to use Thermal grease on the back side. it's the same stuff they use on computer CPU heat sinks.

Noted. Thank you!