starts then dies - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


ECUs and Tuning Discuss Engine Management, Tuning, & Programming

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 03-23-2011, 02:53 AM   #1
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Dec 2009
Location: norfolk, va
Posts: 80
Total Cats: 0
Default starts then dies

well i tried installing a ms1 and ended up frying my ignitor and coils. i now have cops with the stock ecu and all it will do is start and die, and i have no tach. im 100% sure the wiring is correct. i have checked the schematics and trouble shooted with a multimeter, and everything is good. could something else be fried also?
zzmiatazz90 is offline   Reply With Quote
Old 03-23-2011, 09:24 AM   #2
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,813
Total Cats: 1,780
Default

who built it?
Braineack is online now   Reply With Quote
Old 03-23-2011, 09:48 AM   #3
Elite Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,658
Total Cats: 39
Default

Did you put the AFM back in?
richyvrlimited is offline   Reply With Quote
Old 03-23-2011, 01:43 PM   #4
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Dec 2009
Location: norfolk, va
Posts: 80
Total Cats: 0
Default

im not sure who it was built by. i bought it from falcon. he had it running in his car, but im not realy worried about getting the car running on the ms right now. im trying to keep things simple by getting it running on the stock ecu right now. the afm is installed.

after my first failed attemp to get it running on the ms i hooked the stock ecu back up and it started and died, and had no tach. i figured it was the igniter. so i reconfigured the ms and tried to get it to atleast crank with no luck. during this attempt i heard a loud pss sound, so i went back to stock to see what i had and it wouldnt crank. so i did a cop conversion, and now it cranks but i have no tach and it starts and dies. with the ms i was never able to get it to even crank, and it killed my batery in just a few seconds. so i will have to look over the ms thoroughly befor i reinstall it.
zzmiatazz90 is offline   Reply With Quote
Old 03-25-2011, 07:25 PM   #5
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Dec 2009
Location: norfolk, va
Posts: 80
Total Cats: 0
Default

just found out i have continuity between the blk/wht tach wire and 12v blue wire. im not 100% this isnt right is it?i checked this cause i found 12v on the tach wire when its supposed to be .5v with key on engine off.
zzmiatazz90 is offline   Reply With Quote
Old 03-25-2011, 07:56 PM   #6
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Dec 2009
Location: norfolk, va
Posts: 80
Total Cats: 0
Default

something has to be grounding out because i just got my battery jumped off a few hours ago and its dead. i havent even tried to crank it after i took the cables off. so either ive developed a dead battery (which i think is unlikely) or i have a short somewere correct?
zzmiatazz90 is offline   Reply With Quote
Old 03-26-2011, 12:16 PM   #7
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,813
Total Cats: 1,780
Default

Quote:
Originally Posted by zzmiatazz90 View Post
just found out i have continuity between the blk/wht tach wire and 12v blue wire. im not 100% this isnt right is it?i checked this cause i found 12v on the tach wire when its supposed to be .5v with key on engine off.
they shoudl be, but only through a pull-up. so if you have straight continuity you wired them wrong.
Braineack is online now   Reply With Quote
Old 03-26-2011, 12:47 PM   #8
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Dec 2009
Location: norfolk, va
Posts: 80
Total Cats: 0
Default

well i made a mistake. i was checking resistance from 12v blue to ground blk wire. so i have .03 ohms here on the harness that plugs into the ignitor, and the ecu is unhooked.

Last edited by zzmiatazz90; 03-26-2011 at 01:24 PM.
zzmiatazz90 is offline   Reply With Quote
Old 03-26-2011, 02:15 PM   #9
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Dec 2009
Location: norfolk, va
Posts: 80
Total Cats: 0
Default

https://www.miataturbo.net/album.php...pictureid=1569
this is my wiring at the igniter from left to right (1-not used, 2-trigger, 3-12v, 4&5-tach, 6-ground, 7- trigger, 8-not used
zzmiatazz90 is offline   Reply With Quote
Old 03-27-2011, 07:10 PM   #10
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Dec 2009
Location: norfolk, va
Posts: 80
Total Cats: 0
Default


from left to right is 1-12v, 2-tach, 3-trigger, 4-ground.
zzmiatazz90 is offline   Reply With Quote
Old 03-28-2011, 07:38 PM   #11
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Dec 2009
Location: norfolk, va
Posts: 80
Total Cats: 0
Default

finaly got someone to help me out, and i found that my ecu isnt triggering 1and4. it is triggering 2and3 though!
zzmiatazz90 is offline   Reply With Quote
Old 03-28-2011, 08:00 PM   #12
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Dec 2009
Location: norfolk, va
Posts: 80
Total Cats: 0
Default


heres wat i believe the culprit is. look right in the center of the pic. you are looking for a grey and black piece. not sure if its a capaciter or resister. so much for keeping things simple huh!
zzmiatazz90 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 11:59 PM
Are my coils failing? viriiguy General Miata Chat 5 09-28-2015 08:39 PM


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 09:31 AM.