Who do I throw my money at to test a dead MS3X? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


MEGAsquirt A place to collectively sort out this megasquirt gizmo

Reply
 
 
 
LinkBack Thread Tools
Old 04-18-2018, 05:14 PM   #21  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default

Figured out pretty quick not to reach out to anything other than a miata specific forum about this kind of thing. The only feedback I'm getting is people blasting me for not populating the entire board.
ungluedflyer is offline   Reply With Quote
Old 04-18-2018, 05:27 PM   #22  
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 73,787
Total Cats: 1,954
Default

does the daughterboard cpu get stupid hot with power on?
Braineack is offline   Reply With Quote
Old 04-18-2018, 05:28 PM   #23  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
does the daughterboard cpu get stupid hot with power on?
Nope. Not even warm.
ungluedflyer is offline   Reply With Quote
Old 04-18-2018, 05:53 PM   #24  
Senior Member
iTrader: (2)
 
wackbards's Avatar
 
Join Date: Nov 2015
Location: Seattle
Posts: 770
Total Cats: 91
Default

Pardon my stupids, but are these pins jumped on purpose?

wackbards is offline   Reply With Quote
Old 04-18-2018, 11:01 PM   #25  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default

Quote:
Originally Posted by wackbards View Post
Pardon my stupids, but are these pins jumped on purpose?

It's not stupids. Yeah for NB2's the wiring harness needs to be jumped like that. It's specific to the trubokitty build.
ungluedflyer is offline   Reply With Quote
Old 04-19-2018, 06:05 PM   #26  
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 73,787
Total Cats: 1,954
Default

It should update that, I just bridge in the db37.
Braineack is offline   Reply With Quote
Old 04-19-2018, 07:47 PM   #27  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default

I reached out to Peter Florance at PFTuning. He's gonna take a look at it. I need someone with more testing equipment and WAY more brain power than I do.
ungluedflyer is offline   Reply With Quote
Old 04-20-2018, 08:35 AM   #28  
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 73,787
Total Cats: 1,954
Default

just for S&G's ,remove that solder bridge. the purpose is to split the 12v input to power the MS into extra leads so you can power the vvt solenoid and idle vale because NBs power those up from the ECU. Just to confirm those are somehow causing a short on your 12v somewhere.
Braineack is offline   Reply With Quote
Old 04-20-2018, 09:12 AM   #29  
Supporting Vendor
 
Matt Cramer's Avatar
 
Join Date: Sep 2006
Posts: 2,329
Total Cats: 62
Default

Does the 5 volt side drop out when the daughter board is connected? If you still have 5 volts when the daughter board is plugged in, you don't have a short; the problem is something else.
Matt Cramer is offline   Reply With Quote
Old 04-20-2018, 09:30 AM   #30  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
just for S&G's ,remove that solder bridge. the purpose is to split the 12v input to power the MS into extra leads so you can power the vvt solenoid and idle vale because NBs power those up from the ECU. Just to confirm those are somehow causing a short on your 12v somewhere.
I just added that bridge recently while I was going over the board looking for problems, it wasn't working before I added it. I could remove it, but it's not the cause of the original issue.
ungluedflyer is offline   Reply With Quote
Old 04-20-2018, 09:37 AM   #31  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default

Quote:
Originally Posted by Matt Cramer View Post
Does the 5 volt side drop out when the daughter board is connected? If you still have 5 volts when the daughter board is plugged in, you don't have a short; the problem is something else.
I get 5v with CPU unplugged and 4.95v with the CPU in. My 12v drops from 12v to 11.87v when plugged in, so it must be drawing /something/ I found a more truthful wallwart that's giving me better voltage readings. I still only get a solid fp led.
ungluedflyer is offline   Reply With Quote
Old 04-20-2018, 02:37 PM   #32  
Supporting Vendor
 
Matt Cramer's Avatar
 
Join Date: Sep 2006
Posts: 2,329
Total Cats: 62
Default

That would suggest the CPU is OK. Does it respond to Port Check if you connect the boot jumper on the MS3 daughter board?
Matt Cramer is offline   Reply With Quote
Old 04-20-2018, 03:00 PM   #33  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default

Nope. First one is with the MS3 daughterboard USB serial connector, Second is with a straight DB9 serial cable to DB9 port on desktop. MS3 usb
DB9
Same USB
DB9
Same solid fuel pump LED.
ungluedflyer is offline   Reply With Quote
Old 04-20-2018, 04:00 PM   #34  
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 73,787
Total Cats: 1,954
Default

you're getting the FP light because that solder bridge is putting 12v on that pin. This mod is unique to have I do thing, and I should have elaborated on that a little in my writeup.
Braineack is offline   Reply With Quote
Old 04-20-2018, 04:34 PM   #35  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default


Removed the bridge
Same thing...
The flux is dark, the board isn't burnt. No continuity between any of the three pins now.
ungluedflyer is offline   Reply With Quote
Old 04-21-2018, 11:30 AM   #36  
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 73,787
Total Cats: 1,954
Default

:(

wanna send it to me before Peter, Im much cheaper than he'd charge, I may be able to spot something and if not, i just send it along to him.
Braineack is offline   Reply With Quote
Old 04-21-2018, 11:51 AM   #37  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
:(

Im much cheaper than he'd charge
That what you tell all the girls? lol I went ahead and PM'd you.
ungluedflyer is offline   Reply With Quote
Old 04-22-2018, 03:14 PM   #38  
Elite Member
iTrader: (11)
 
IcantDo55's Avatar
 
Join Date: Apr 2007
Location: VA Beach
Posts: 1,856
Total Cats: 27
Default

Peter is good people and knows his ****. Live right near me but you right, you pay for his expertise.
IcantDo55 is offline   Reply With Quote
Old 05-16-2018, 12:17 PM   #39  
Newb
Thread Starter
 
Join Date: Feb 2017
Location: Dallas, Texas
Posts: 23
Total Cats: 0
Default

Does anyone know how I might reach Brian other than pm? Not trying to be a pest but I haven't gotten a reply in two weeks. Last thing we were talking about was shipping arrangements to another person. I need to coordinate between 3 people.
ungluedflyer is offline   Reply With Quote
Old 05-16-2018, 12:21 PM   #40  
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 73,787
Total Cats: 1,954
Default

I replied twice to you via pm about it... once to say I shipped to peter and like just yesterday to your last pm. peter's had it for like a week now...
Braineack is offline   Reply With Quote
 
 
Reply


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 04:47 AM.




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.