MTX-L GND or SG? - 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 07-06-2012, 03:36 AM   #1
Senior Member
Thread Starter
iTrader: (3)
 
Join Date: Apr 2011
Location: Volo, IL
Posts: 1,247
Total Cats: 140
Default MTX-L GND or SG?

I'm still trying to find the perfect match between my DIYPNP, MTX-L and Tunerstudio. Currently I have the wiring for the wideband going through the DB15 connection, with 12V to pin 1, O2 signal to pin 4. The MTX-L only has one ground wire serving as both power ground and signal ground as I understand it, so would it make much difference whether the ground is wired to GND or SG on the main board?
dieselmiata is offline   Reply With Quote
Old 07-06-2012, 03:46 AM   #2
Supporting Vendor
iTrader: (10)
 
Reverant's Avatar
 
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,440
Total Cats: 198
Default

Use GND, not SG.
Reverant is offline   Reply With Quote
Old 07-06-2012, 07:19 AM   #3
Senior Member
Thread Starter
iTrader: (3)
 
Join Date: Apr 2011
Location: Volo, IL
Posts: 1,247
Total Cats: 140
Default

Got it, thanks.
dieselmiata is offline   Reply With Quote
Old 07-06-2012, 12:26 PM   #4
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Make sure you have a fuse on that 12V feed. You wouldn't want any potential problems with the wideband to disable your damage your ECU.
Ben is offline   Reply With Quote
Old 07-06-2012, 06:05 PM   #5
Senior Member
Thread Starter
iTrader: (3)
 
Join Date: Apr 2011
Location: Volo, IL
Posts: 1,247
Total Cats: 140
Default

Is there a particular amperage fuse recommended, or is a standard 10 amp inline ok?
dieselmiata is offline   Reply With Quote
Old 07-09-2012, 11:47 AM   #6
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

I'd use a 5 amp fuse.
Ben is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1.8 TB/TPS for use with 1.6 wiring Elfering MEGAsquirt 17 12-16-2016 07:44 PM
Left over turbo build parts gdoehl Miata parts for sale/trade 16 10-01-2015 10:42 AM
MS2 first start andrew MEGAsquirt 20 01-19-2012 07:16 PM
PWM converter board at the DIYPNP Zaphod MEGAsquirt 34 01-08-2011 09:15 AM
99-00 Pin Out Spreadsheet AbeFM MEGAsquirt 16 01-20-2008 05:12 PM


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 03:02 PM.