What is normal voltage sent to trigger MX5 coil packs? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members

Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

LinkBack Thread Tools Search this Thread
Old 11-02-2009, 07:36 PM   #1  
Thread Starter
Join Date: Jun 2009
Posts: 15
Total Cats: 0
Default What is normal voltage sent to trigger MX5 coil packs?

As the title says.. what is the proper amount of voltage to be read from a volt meter when connected between ground and the trigger on one of the coils. This is a '99 Miata (NB) for all those wondering.

I have a Microtech LT10s that is driving the coils, and in test mode (1200-1500rpm), I am reading 2.14v being sent to the coil trigger wire using a simple digital multimeter. The problem is the Microtech unit very quickly fried the stock coils since it was using a dwell of 3.5 -- it still starts and runs for about 5 seconds but thats about it, and I am blaming the coils since they fail an ohm-meter test across some of the pins as having absolutely no connection at all.

I've searched google, forums, everywhere and for the life of me cannot find the normal voltage that gets sent to coils on the trigger to fire them. If someone can explain to a simple person like me how the trigger exactly works, that would be wonderful.

I will be replacing the horrible '99 coil packs with the toyota COP's (90080-19015) but do not want to damage them if the wrong voltage is being sent.
bompus is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Raleigh: Fiberglass headlight scope, 1.6L ECU, AFM, Hardtop latches, more bigmackloud Miata parts for sale/trade 13 09-22-2017 12:34 PM
"Chimney Ethanol" E100 MiataGarage Engine Performance 5 09-29-2015 11:04 PM
VR6 to Miata Swap ScrapinMX5 Meet and Greet 8 09-28-2015 01:04 PM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 10:22 AM

coil, cop, igniter, ignition

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 12:31 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.