LC-1 gauge and MSPNP doesn't agree on AF value - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 09-20-2011, 10:24 AM   #1
Junior Member
Thread Starter
 
Join Date: Feb 2010
Location: Oslo, Norway
Posts: 219
Total Cats: 1
Default LC-1 gauge and MSPNP doesn't agree on AF value

There's about 0.5 in AF value difference between the reading on the MSPNP (89-93) and the LC-1 Gauge.
Anyone have a clue how to make them talk the same language, and to which one is correct?

The MS reads the signal to be leaner then the gauge, so either way, I'm running it richer. It's still not optimal though, so I'd like to figure it out.

Is it just a small adjustment to the MS, or do I have to get hard and handy?

It's been like this since I installed it, and both the LC and the MS was new.
Loki79 is offline   Reply With Quote
Old 09-20-2011, 01:18 PM   #2
Elite Member
iTrader: (4)
 
MartinezA92's Avatar
 
Join Date: Aug 2009
Location: Mountain View, CA
Posts: 1,702
Total Cats: 28
Default

This is a pretty common issue. You also posted it in the wrong forum.
Search for it and you'll find countless threads on it.
MartinezA92 is offline   Reply With Quote
Old 09-20-2011, 09:10 PM   #3
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,131
Total Cats: 598
Default

Its not just MS, its all the other ecus also. I'm running adaptronic and i have the same issue. The issue is with the LC1
triple88a is offline   Reply With Quote
Old 09-20-2011, 09:15 PM   #4
Elite Member
iTrader: (24)
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 3,778
Total Cats: 35
Default

There needs to be a stickied thread with the solution to this problem, because virtually every LC-1 installation can exhibit this issue.
Bryce is offline   Reply With Quote
Old 09-20-2011, 09:21 PM   #5
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Just a very small ground offset is all it's likely to be. You can tweak the LC1's analog output calibration in LMProgrammer a bit so they line up better.
Ben is offline   Reply With Quote
Old 09-21-2011, 02:57 PM   #6
Junior Member
 
Join Date: Jan 2011
Location: sacramento ,ca
Posts: 402
Total Cats: 46
Default

i have my MS1 and my lc-1 sharing the same power and ground points and mine is .7-1.3 off at times... i have been blaming the analog gauge for being slow cause at a wot pull they seem to be even.
fastivab6tg25mr is offline   Reply With Quote
Old 09-22-2011, 03:55 PM   #7
Junior Member
iTrader: (20)
 
Join Date: Apr 2010
Location: Redmond, WA
Posts: 494
Total Cats: 15
Default

mine is about .3 off constantly. not too bad considering others have had it worse. Not too worried as long as megasquirt is getting the accurate reading and the gauge is just a little off
bmxfuel007 is offline   Reply With Quote
Old 09-23-2011, 02:25 AM   #8
Junior Member
Thread Starter
 
Join Date: Feb 2010
Location: Oslo, Norway
Posts: 219
Total Cats: 1
Default

So it's the MSPNP who's getting the correct signal, and the gauge who's a bit off?
I rather be dead on my AF target, then off with .5 in either direction.
Loki79 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
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 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 02:44 AM.