DIY Turbo Discussion greddy on a 1.8? homebrew kit?

LC-1 gauge and MSPNP doesn't agree on AF value

Thread Tools
 
Search this Thread
 
Old 09-20-2011, 09:24 AM
  #1  
Junior Member
Thread Starter
 
Loki79's Avatar
 
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  
Old 09-20-2011, 12:18 PM
  #2  
Elite Member
iTrader: (4)
 
MartinezA92's Avatar
 
Join Date: Aug 2009
Location: Redwood City, CA
Posts: 1,784
Total Cats: 42
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  
Old 09-20-2011, 08:10 PM
  #3  
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 10,454
Total Cats: 1,799
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  
Old 09-20-2011, 08:15 PM
  #4  
Elite Member
iTrader: (24)
 
Bryce's Avatar
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 3,759
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  
Old 09-20-2011, 08:21 PM
  #5  
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,659
Total Cats: 134
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.
__________________
Chief of Floor Sweeping, DIYAutoTune.com & AMP EFI
Crew Chief, Car Owner & Least Valuable Driver, HongNorrthRacing

91 Turbo | 10AE Turbo | 01 Track Rat | #323 Mazda Champcar

Originally Posted by concealer404
Buy an MSPNP Pro, you'll feel better.
Ben is offline  
Old 09-21-2011, 01:57 PM
  #6  
Senior Member
 
fastivab6tg25mr's Avatar
 
Join Date: Jan 2011
Location: sacramento ,ca
Posts: 563
Total Cats: 160
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  
Old 09-22-2011, 02:55 PM
  #7  
Senior Member
iTrader: (21)
 
bmxfuel007's Avatar
 
Join Date: Apr 2010
Location: Redmond, WA
Posts: 518
Total Cats: 19
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  
Old 09-23-2011, 01:25 AM
  #8  
Junior Member
Thread Starter
 
Loki79's Avatar
 
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  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
slomiata
MEGAsquirt
5
10-07-2015 01:11 PM
shooterschmidty
Engine Performance
8
09-30-2015 10:28 PM
itsMikey
MSPNP
3
09-28-2015 06:40 AM



Quick Reply: LC-1 gauge and MSPNP doesn't agree on AF value



All times are GMT -4. The time now is 12:24 PM.