MEGAsquirt A place to collectively sort out this megasquirt gizmo

LC-1 Wideband MS vs Gauge different readings

Thread Tools
 
Search this Thread
 
Old 12-11-2010 | 09:46 PM
  #1  
Cross's Avatar
Thread Starter
Junior Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 252
Total Cats: 0
From: Tucson, AZ
Default LC-1 Wideband MS vs Gauge different readings

So in MS my AFR reads one number and my gauge reads another.
I have set both in the Innovative program using the serial port, no change.

I also made a custom WB setup configuration in MS and did 0.000 - 7.35 AFR and 5.000 - 22.39AFR AFR.

Gauge still reads one direction MS goes the other, both seem really close on start up or when the unit is not turned on yet.

I am about to make my own custom setup for the LC-1 and MS to see what it does but I am at a loss here.

Along with a high idle thats in another thread that no one seems to be able to figure out this is just another fun problem added to the mix.
Old 12-11-2010 | 10:06 PM
  #2  
chriscar's Avatar
Elite Member
iTrader: (24)
 
Joined: Dec 2007
Posts: 1,709
Total Cats: 15
From: Carrollton TX
Default

Don't be an idiot like me and leave your stock narrowband connected along with the LC1. It makes for a very confused Megasquirt.

C
Old 12-11-2010 | 10:12 PM
  #3  
Cross's Avatar
Thread Starter
Junior Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 252
Total Cats: 0
From: Tucson, AZ
Default

God Damit!!!!!! I'm gonna go kick myself in the nuts now....

Wonder if this has anything to do with my issues so far.
Old 12-11-2010 | 10:14 PM
  #4  
chriscar's Avatar
Elite Member
iTrader: (24)
 
Joined: Dec 2007
Posts: 1,709
Total Cats: 15
From: Carrollton TX
Default

Oh I hope that's it. It'll mean I'm not the only idiot.

C
Old 12-11-2010 | 10:14 PM
  #5  
ianferrell's Avatar
Senior Member
 
Joined: Aug 2010
Posts: 613
Total Cats: 3
From: Maumelle, AR
Default

Like... inverted? if they're hooked to the same output on the lc1 it should at least move the same direction... you got the white ground from the lc1 going to the same ground as the megasquirt (I've actually been splicing them into grounds in the oe harness just in front of the megasquirt to get good signal, run the gauge's ground to the same spot too)
Old 12-11-2010 | 10:16 PM
  #6  
chriscar's Avatar
Elite Member
iTrader: (24)
 
Joined: Dec 2007
Posts: 1,709
Total Cats: 15
From: Carrollton TX
Default

In my case the NB was running through the stock harness, and the LC1 went directly to the MS (pin 10?).

C
Old 12-11-2010 | 10:28 PM
  #7  
Cross's Avatar
Thread Starter
Junior Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 252
Total Cats: 0
From: Tucson, AZ
Default

The Wideband has a different ground, the MS unit is a PNP so I assume its using the Harness grounding points.
Old 12-11-2010 | 10:48 PM
  #8  
Cross's Avatar
Thread Starter
Junior Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 252
Total Cats: 0
From: Tucson, AZ
Default

MS and Gauge Mirror eachother now, thanks. I feel stupid but thats one problem solved.

Still idling way to high.
Old 12-11-2010 | 10:55 PM
  #9  
chriscar's Avatar
Elite Member
iTrader: (24)
 
Joined: Dec 2007
Posts: 1,709
Total Cats: 15
From: Carrollton TX
Default

So what was the fix?

Still idling way to high.
Adjust the idle bleed screw on the throttle body?

C
Old 12-11-2010 | 11:10 PM
  #10  
Cross's Avatar
Thread Starter
Junior Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 252
Total Cats: 0
From: Tucson, AZ
Default

I disconnected the IAC and set the idle that way, works great now screw the IAC for now it pisses me off.

I am going to update my high idle thread Ia m sure Brain will tell me I am wrong but I have a ton of info and no idea why this will not idle normally.
Old 12-11-2010 | 11:11 PM
  #11  
chriscar's Avatar
Elite Member
iTrader: (24)
 
Joined: Dec 2007
Posts: 1,709
Total Cats: 15
From: Carrollton TX
Default

What fixed the wb????

C
Old 12-11-2010 | 11:12 PM
  #12  
Cross's Avatar
Thread Starter
Junior Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 252
Total Cats: 0
From: Tucson, AZ
Default

Unplugging the Narrowband sensors (Stock O2's).

Hey did you have any issues with your fans not coming on? I got over 220 and my fans have not come on while idling I am looking into it now.
Old 12-11-2010 | 11:19 PM
  #13  
chriscar's Avatar
Elite Member
iTrader: (24)
 
Joined: Dec 2007
Posts: 1,709
Total Cats: 15
From: Carrollton TX
Default

Originally Posted by Cross
Unplugging the Narrowband sensors (Stock O2's).


Originally Posted by Cross
Hey did you have any issues with your fans not coming on? I got over 220 and my fans have not come on while idling I am looking into it now.
Nope, never a problem with that. Did you fiddle with the stock wiring, or change the fans? There's no need to wait to get car all hot and bothered to check the fans, just set the trigger real low and the driver side fan should kick on. The passenger fan only comes on with the AC. Matter of fact, IIRC, one or both fans should go on as soon as you hit the AC button.

Also, remember, the set temp is 45* ABOVE the WT, so to have them come on at 220, you set it to 265.

C
Old 12-11-2010 | 11:32 PM
  #14  
Cross's Avatar
Thread Starter
Junior Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 252
Total Cats: 0
From: Tucson, AZ
Default

Thanks, just finished modifying my gauge setup time to give that a run.
Old 12-11-2010 | 11:34 PM
  #15  
chriscar's Avatar
Elite Member
iTrader: (24)
 
Joined: Dec 2007
Posts: 1,709
Total Cats: 15
From: Carrollton TX
Default

BTW, I didn't know you had a 99. Everything I said about the fans applies to my 95, not sure if a 99 is any different.

C
Old 12-11-2010 | 11:36 PM
  #16  
Cross's Avatar
Thread Starter
Junior Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 252
Total Cats: 0
From: Tucson, AZ
Default

I still have AC but with no IAC something tells me it will not work all that well.....

I need to figure out where the Fan Temp controls are in Tuner Studio because where I thought it was does nothing.
Old 12-11-2010 | 11:39 PM
  #17  
chriscar's Avatar
Elite Member
iTrader: (24)
 
Joined: Dec 2007
Posts: 1,709
Total Cats: 15
From: Carrollton TX
Default

In Tunerstudio on my MSPNP it's MORE SETTINGS | OUTPUTS | OUTPUT 2

Settings are as follows:
Output 2 - CLT
On-Off Limit - 245 (that turns the fans on at 205)
Hysterisis - 5
Upper Limit - 0
Invert - Normal

C
Old 12-11-2010 | 11:42 PM
  #18  
Cross's Avatar
Thread Starter
Junior Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 252
Total Cats: 0
From: Tucson, AZ
Default

Yeah thats not an option in TS for me... Sometimes finding the new location and setup for things going from Megatune and a MS1 unit to Tuner Studio and MS2 is really troublesome.

Thank you for all the help though.
Old 12-11-2010 | 11:44 PM
  #19  
chriscar's Avatar
Elite Member
iTrader: (24)
 
Joined: Dec 2007
Posts: 1,709
Total Cats: 15
From: Carrollton TX
Default

I'll get to play that game soon, I'm in on the Reverent/Braineak DIYPNP group buy.

C
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Full_Tilt_Boogie
Build Threads
84
04-12-2021 05:21 PM
stoves
Suspension, Brakes, Drivetrain
5
04-21-2016 04:00 PM
btabor
ECUs and Tuning
10
09-28-2015 06:33 PM




All times are GMT -4. The time now is 10:26 AM.