Burned out Ignitors - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 05-13-2009, 03:55 PM   #1
Elite Member
Thread Starter
iTrader: (17)
 
Join Date: Aug 2007
Location: Fort Myers, FL
Posts: 2,790
Total Cats: 128
Default Burned out Ignitors

A few weeks ago my tach stopped working, after some troubleshooting I figured out the ignitor was bad and replaced it. Everything worked fine for a couple weeks, now the tach is broken again. Is there anything you guys can think of that would be causing the problem? Maybe a short or something? Anybody heard of this happening before? I find it hard to believe that it could just be coincidence. :(
pdexta is offline   Reply With Quote
Old 05-14-2009, 11:45 PM   #2
Junior Member
 
Join Date: Feb 2005
Posts: 65
Total Cats: 0
Default

Yes, this happened to me twice on my '92 Both times were after I unplugged and removed my FM/Link ECU without disconnecting the battery earth lead first. Are your battery lead and ECU connections tight?

J
Juffa is offline   Reply With Quote
Old 05-15-2009, 12:12 AM   #3
Elite Member
Thread Starter
iTrader: (17)
 
Join Date: Aug 2007
Location: Fort Myers, FL
Posts: 2,790
Total Cats: 128
Default

Stupid question, sorry, when you say battery earth lead, is that referring to the battery ground (the negative terminal)? I'll double check those, thanks for the tip, this is awfully frustrating. I'm pretty sure I killed my 3rd ignitor today :(
pdexta is offline   Reply With Quote
Old 05-15-2009, 10:47 PM   #4
Junior Member
 
Join Date: Feb 2005
Posts: 65
Total Cats: 0
Default

Yes Earth = Negative. Once you have disconnected the negative strap from the battery you can then check out the ECU (and other electrical) connections.

Something I didn't mention before was that the first time I blew the ignitor I lost spark to two cylinders. I don't think this happend when the second ignitor blew...

Hope this helps.

J
Juffa is offline   Reply With Quote
Old 05-15-2009, 10:59 PM   #5
I'm Miserable!
iTrader: (2)
 
Join Date: Apr 2008
Location: monroe CT
Posts: 463
Total Cats: 0
Default

i have one if you need one i got it for a coil over plug set up i got but never installed the coils or the ignitor
1990miata1.6 is offline   Reply With Quote
Old 06-02-2009, 04:22 PM   #6
Junior Member
 
Join Date: Sep 2008
Location: ATL GA
Posts: 290
Total Cats: -217
Default

i did the same thing unpluged my link ecu and then my tach died .. it was the ignitor as well.. i am looking for a replacment ignitor now .. but i took my hole tach cluster out and check so many things before i tried a friends ignitor and that worked..
locomonkeyboricua is offline   Reply With Quote
Old 06-02-2009, 04:28 PM   #7
Junior Member
iTrader: (1)
 
Join Date: Mar 2007
Location: South Florida
Posts: 491
Total Cats: -1
Default

Are you guys leaving the ignition in the "on" position with the engine off for minutes at a time?

If you are, you could be overheating the ignitors. This will not happen with the OEM PCM but will with most/some aftermarket units.

The reason that you loose two cylinders is because of the waste spark system.
mrtonyg is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
starting issue Johnny Tater Engine Performance 3 09-23-2015 07:10 PM
What happened to my Dynalite? midpack Suspension, Brakes, Drivetrain 18 09-22-2015 08:52 PM
mslabs MS2 - Idle control issue ndragun MEGAsquirt 0 09-20-2015 11:28 PM
Sold fail wagon Miata parts for sale/trade 2 09-07-2015 09:51 PM
ME221 Now has Autotune and Long Term Fuel Trim Tables Motorsport-Electronics ECUs and Tuning 0 09-05-2015 09:02 AM


Thread Tools

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 01:10 PM.