LC-1 Wideband MS vs Gauge different readings - 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 12-11-2010, 09:46 PM   #1
Junior Member
Thread Starter
iTrader: (4)
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 252
Total Cats: 0
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.
Cross is offline   Reply With Quote
Old 12-11-2010, 10:06 PM   #2
Elite Member
iTrader: (24)
 
chriscar's Avatar
 
Join Date: Dec 2007
Location: Carrollton TX
Posts: 1,702
Total Cats: 13
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
chriscar is offline   Reply With Quote
Old 12-11-2010, 10:12 PM   #3
Junior Member
Thread Starter
iTrader: (4)
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 252
Total Cats: 0
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.
Cross is offline   Reply With Quote
Old 12-11-2010, 10:14 PM   #4
Elite Member
iTrader: (24)
 
chriscar's Avatar
 
Join Date: Dec 2007
Location: Carrollton TX
Posts: 1,702
Total Cats: 13
Default

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

C
chriscar is offline   Reply With Quote
Old 12-11-2010, 10:14 PM   #5
Senior Member
 
Join Date: Aug 2010
Location: Maumelle, AR
Posts: 618
Total Cats: 2
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)
ianferrell is offline   Reply With Quote
Old 12-11-2010, 10:16 PM   #6
Elite Member
iTrader: (24)
 
chriscar's Avatar
 
Join Date: Dec 2007
Location: Carrollton TX
Posts: 1,702
Total Cats: 13
Default

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

C
chriscar is offline   Reply With Quote
Old 12-11-2010, 10:28 PM   #7
Junior Member
Thread Starter
iTrader: (4)
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 252
Total Cats: 0
Default

The Wideband has a different ground, the MS unit is a PNP so I assume its using the Harness grounding points.
Cross is offline   Reply With Quote
Old 12-11-2010, 10:48 PM   #8
Junior Member
Thread Starter
iTrader: (4)
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 252
Total Cats: 0
Default

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

Still idling way to high.
Cross is offline   Reply With Quote
Old 12-11-2010, 10:55 PM   #9
Elite Member
iTrader: (24)
 
chriscar's Avatar
 
Join Date: Dec 2007
Location: Carrollton TX
Posts: 1,702
Total Cats: 13
Default

So what was the fix?

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

C
chriscar is offline   Reply With Quote
Old 12-11-2010, 11:10 PM   #10
Junior Member
Thread Starter
iTrader: (4)
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 252
Total Cats: 0
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.
Cross is offline   Reply With Quote
Old 12-11-2010, 11:11 PM   #11
Elite Member
iTrader: (24)
 
chriscar's Avatar
 
Join Date: Dec 2007
Location: Carrollton TX
Posts: 1,702
Total Cats: 13
Default

What fixed the wb????

C
chriscar is offline   Reply With Quote
Old 12-11-2010, 11:12 PM   #12
Junior Member
Thread Starter
iTrader: (4)
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 252
Total Cats: 0
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.
Cross is offline   Reply With Quote
Old 12-11-2010, 11:19 PM   #13
Elite Member
iTrader: (24)
 
chriscar's Avatar
 
Join Date: Dec 2007
Location: Carrollton TX
Posts: 1,702
Total Cats: 13
Default

Quote:
Originally Posted by Cross View Post
Unplugging the Narrowband sensors (Stock O2's).


Quote:
Originally Posted by Cross View Post
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
chriscar is offline   Reply With Quote
Old 12-11-2010, 11:32 PM   #14
Junior Member
Thread Starter
iTrader: (4)
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 252
Total Cats: 0
Default

Thanks, just finished modifying my gauge setup time to give that a run.
Cross is offline   Reply With Quote
Old 12-11-2010, 11:34 PM   #15
Elite Member
iTrader: (24)
 
chriscar's Avatar
 
Join Date: Dec 2007
Location: Carrollton TX
Posts: 1,702
Total Cats: 13
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
chriscar is offline   Reply With Quote
Old 12-11-2010, 11:36 PM   #16
Junior Member
Thread Starter
iTrader: (4)
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 252
Total Cats: 0
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.
Cross is offline   Reply With Quote
Old 12-11-2010, 11:39 PM   #17
Elite Member
iTrader: (24)
 
chriscar's Avatar
 
Join Date: Dec 2007
Location: Carrollton TX
Posts: 1,702
Total Cats: 13
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
chriscar is offline   Reply With Quote
Old 12-11-2010, 11:42 PM   #18
Junior Member
Thread Starter
iTrader: (4)
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 252
Total Cats: 0
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.
Cross is offline   Reply With Quote
Old 12-11-2010, 11:44 PM   #19
Elite Member
iTrader: (24)
 
chriscar's Avatar
 
Join Date: Dec 2007
Location: Carrollton TX
Posts: 1,702
Total Cats: 13
Default

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

C
chriscar is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 12-15-2017 09:00 PM
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
wiring wideband ground to battery terminal btabor ECUs and Tuning 10 09-28-2015 06:33 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 05:27 AM.