lc-1 output ID and funky/weird 15.0 static # in the gauge - 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 01-24-2009, 08:58 PM   #1
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default lc-1 output ID and funky/weird 15.0 static # in the gauge

how can I ID which output is going to the gauge without looking at the wires (tough to get access and neatly taped up). I tried changing the voltages but the display remained constant on the gauge.

After I drive the car for a while, the gauge and MS both read 15.0:1 until I cut and re-establish power. It does this **** all the time. I am not getting an error code on the little light. I've reset and done several free-air calibrations and this problem will not go away. My sensor is mounted on the top of the pipe, at the back of the cat.

I searched.
hustler is offline   Reply With Quote
Old 01-24-2009, 08:59 PM   #2
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 8,797
Total Cats: 248
Default

How'd you wire up the LC-1?
patsmx5 is offline   Reply With Quote
Old 01-24-2009, 09:09 PM   #3
Senior Member
iTrader: (2)
 
Join Date: Apr 2008
Location: Tallahassee, FL
Posts: 1,378
Total Cats: 0
Default

naarleven is offline   Reply With Quote
Old 01-25-2009, 01:42 AM   #4
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by patsmx5 View Post
How'd you wire up the LC-1?
can't remember where I put the yellow #1 and brown #2 wires. The grouns are all on the intake plenum, on different lugs.
hustler is offline   Reply With Quote
Old 01-25-2009, 01:44 AM   #5
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 8,797
Total Cats: 248
Default

Where did you get +12V switched power from? Does the LC-1 stay powered while you're starting, or does it go off when in the start position? Where's the LC-1 mounted? Was it new when you bought it?

Naarleven's pic = win.
patsmx5 is offline   Reply With Quote
Old 01-25-2009, 02:14 AM   #6
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

power is from a piggy-back fuse block thingy on the dash light fuse...I'm pretty sure it stays on but the gauge is powered from another circuit which is not. The controller is under the shift ****. I bought it new.
hustler is offline   Reply With Quote
Old 01-25-2009, 02:41 AM   #7
Senior Member
iTrader: (8)
 
turbobluemiata's Avatar
 
Join Date: Aug 2006
Location: Springfield, IL
Posts: 1,019
Total Cats: 0
Default

I think all the grounds go to the same place...... if I remember the instructions, and I know its very picky about how you wire it... but FWIW my gauge is wired to the brown output and It reads fine
turbobluemiata is offline   Reply With Quote
Old 01-25-2009, 10:42 AM   #8
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by turbobluemiata View Post
I think all the grounds go to the same place...... if I remember the instructions, and I know its very picky about how you wire it... but FWIW my gauge is wired to the brown output and It reads fine
you can either send all gnd's to the same piece of metal on different lugs, or solder them together...no stacking lugs.

I guess I have to start cutting heat-shrink.
hustler is offline   Reply With Quote
Old 01-26-2009, 11:59 AM   #9
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Mine does the same **** except it actually blinks the code. Upon warmup it works fine, as soon as I drive down the block it dies.

Come spring im throwing the sensor in the garbage or just buying an AEM.

You sure you got your light setup right? Like when you press the free air button it goes out?
Saml01 is offline   Reply With Quote
Old 01-26-2009, 12:06 PM   #10
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by Saml01 View Post
Mine does the same **** except it actually blinks the code. Upon warmup it works fine, as soon as I drive down the block it dies.

Come spring im throwing the sensor in the garbage or just buying an AEM.

You sure you got your light setup right? Like when you press the free air button it goes out?
correct. Maybe the sensor is bad, dunno. However I tuned it with both outputs on the ms voltage range, so I know its tuned and now I just ignore the gauge.
hustler is offline   Reply With Quote
Old 01-26-2009, 12:56 PM   #11
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Quote:
Originally Posted by hustler View Post
correct. Maybe the sensor is bad, dunno. However I tuned it with both outputs on the ms voltage range, so I know its tuned and now I just ignore the gauge.
While I do the same thing, its not ideal. The gauge is a cheap insurance policy.

If it wasnt so damn cold, id change the sensor tomorrow.
Saml01 is offline   Reply With Quote
Old 01-26-2009, 03:01 PM   #12
N3v
Junior Member
 
Join Date: May 2008
Location: Nashville/Knoxville, TN
Posts: 318
Total Cats: 1
Default

why do you tape everything up? that makes messing with stuff hard. my harness looks like this for easy access:
N3v is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
MSPNPPro-MM0105: Coolant Temperature Output slomiata MEGAsquirt 5 10-07-2015 02:11 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 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 06:32 AM.