AFR signal oscillation in TS - Page 2 - 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 10-25-2013, 10:00 PM   #21
Destroyer of Inconel
iTrader: (37)
 
EO2K's Avatar
 
Join Date: Apr 2010
Location: In ur driveway, abusin' ur WPA
Posts: 9,642
Total Cats: 954
Default

Quote:
Originally Posted by Impuls View Post
EO2K those gauges are interesting. I wonder if lc1 is required
VEI Systems -- Intelligent Vehicle Instrumentation -- Products: Instruments <--Direct linky to AFR gauge.

Yes, some sort of external controller is required. I'll be using an LC-1 and I have a VEI boost/afr gauge in an orange that very closely matches my cluster. It will be installed in place of my useless NB oil pressure gauge once I finish my cluster project.

I believe VEI offers Blue, Red, Orange, White and Green even though they are not listed on the website.
EO2K is offline   Reply With Quote
Old 10-25-2013, 11:57 PM   #22
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jan 2012
Location: Tampa, FL
Posts: 761
Total Cats: 19
Default

Quote:
Originally Posted by southernmx5 View Post
Set your lambda averaging lag factor to 100 (raw signal) in TS, and then observe the shittiness of your wideband and tune.
Thanks for the **** tune comment.
**** it, I'll make a video checking the voltage. So sick of this.
Impuls is offline   Reply With Quote
Old 10-27-2013, 11:10 PM   #23
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jan 2012
Location: Tampa, FL
Posts: 761
Total Cats: 19
Default

Quote:
Originally Posted by Impuls View Post
Thanks for the **** tune comment.
**** it, I'll make a video checking the voltage. So sick of this.
I deliver. Try not to be distracted by my very sensual hairy manly man legs.


Shortly after this I fixed some Accel Enrich and took a ride to tune out some very rich spots. Was a very productive ride. Also, I'm pretty sure I got my first "gay" or "***" comment since the motor build, from some kid at a light. He(passanger) waited till he got the green turn light and yelled something at me). Stupid wanna-be florida rednecks... I got it on GoPro too! Still dunno what he said though.
Impuls is offline   Reply With Quote
Old 10-28-2013, 10:21 PM   #24
Junior Member
iTrader: (1)
 
Join Date: Dec 2010
Location: Knoxville, TN
Posts: 279
Total Cats: 2
Default

Quote:
Originally Posted by southernmx5 View Post
Set your lambda averaging lag factor to 100 (raw signal) in TS, and then observe the shittiness of your wideband and tune.
Okay Kevin

I looked for a way to set the lambda averaging lag factor in my TunerStudio application, but such a setting was not readily apparent.

So can you explain where that adjustment is made.

Thanks
mx594m is offline   Reply With Quote
Old 10-28-2013, 10:46 PM   #25
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jan 2012
Location: Tampa, FL
Posts: 761
Total Cats: 19
Default

Quote:
Originally Posted by mx594m View Post
Okay Kevin

I looked for a way to set the lambda averaging lag factor in my TunerStudio application, but such a setting was not readily apparent.

So can you explain where that adjustment is made.

Thanks
Basic settings>General/Lags
Impuls is offline   Reply With Quote
Old 10-28-2013, 11:27 PM   #26
Junior Member
 
Join Date: Oct 2012
Posts: 138
Total Cats: 4
Default

This may or may not help, but some ideas to consider/try:

1) When you checked the O2 voltage at the D15 plug, what did you use as a ground for the voltmeter? If you didn't the first time around, try grounding the voltmeter at the ECU to give you an indication of whether a grounding problem could be in the picture. If you have a constant delat in the AFR between the gauge and the ECM, then that is an indication that the gauge isn't grounded at the ECM, which is best practice.

2) I would recheck voltage at the DB15 with an analog voltmeter. The digital voltmeter could have some smoothing applied to the output to make it "easier" to read or could sample at a low rate (no idea how digital voltmeters are designed). A simple analog voltmeter should show more of a "real time" view. An actual scope would be best of course or a voltmeter with a fast, known sampling rate. (real EE please chime in)

3) Crack the MS case open and see if you have let the magic smoke out :-)

Good luck!
noname4me is offline   Reply With Quote
Old 10-28-2013, 11:55 PM   #27
Junior Member
iTrader: (1)
 
Join Date: Dec 2010
Location: Knoxville, TN
Posts: 279
Total Cats: 2
Default

[QUOTE=Impuls;1067665]Basic settings>General/Lags[/QUOTE

I am using TunerStudio MS 2.0.8 and see no such adjustment under Basic settings
mx594m is offline   Reply With Quote
Old 10-29-2013, 12:41 PM   #28
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jan 2012
Location: Tampa, FL
Posts: 761
Total Cats: 19
Default

Quote:
Originally Posted by noname4me View Post
This may or may not help, but some ideas to consider/try:

1) When you checked the O2 voltage at the D15 plug, what did you use as a ground for the voltmeter? If you didn't the first time around, try grounding the voltmeter at the ECU to give you an indication of whether a grounding problem could be in the picture. If you have a constant delat in the AFR between the gauge and the ECM, then that is an indication that the gauge isn't grounded at the ECM, which is best practice.

2) I would recheck voltage at the DB15 with an analog voltmeter. The digital voltmeter could have some smoothing applied to the output to make it "easier" to read or could sample at a low rate (no idea how digital voltmeters are designed). A simple analog voltmeter should show more of a "real time" view. An actual scope would be best of course or a voltmeter with a fast, known sampling rate. (real EE please chime in)

3) Crack the MS case open and see if you have let the magic smoke out :-)

Good luck!
Damn that magic smoke! haha
When I checked the voltage I used chassis ground, DIY suggested moving the ground to the head/ engine instead of the chassis so I'm going to move the AFR and ECU ground the the head see if that improves anything.

I'll use the ECU GROUND pin next time I check the voltage. Just gotta find someone with an analog voltmeter.
I've also been told when grounding the AFR I don't want to do it to another ground of a sensor or anything (like the grounding bold on the back of the head)


Quote:
Originally Posted by mx594m View Post
Quote:
Originally Posted by Impuls View Post
Basic settings>General/Lags
I am using TunerStudio MS 2.0.8 and see no such adjustment under Basic settings
Update update update!



_________________EDIT
Also, this may be unrelated but my Tach in my gauge cluster read different from what TS tells me. At idle(still a little high) of 1200rpm in TS my gauge cluster reads 900 but revving to 4000rpm on my gauge cluster TS shows 3500. I noticed this last night when tuning some rich fuel spots.

Last edited by Impuls; 10-29-2013 at 12:57 PM.
Impuls is offline   Reply With Quote
Old 10-29-2013, 08:36 PM   #29
Junior Member
iTrader: (1)
 
Join Date: Dec 2010
Location: Knoxville, TN
Posts: 279
Total Cats: 2
Default

TS website tells me V-2.0.8 is the most up to date version

could the difference be due to me using a MS-PNP1 and you using either a 2 or 3?
mx594m is offline   Reply With Quote
Old 10-29-2013, 09:39 PM   #30
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jan 2012
Location: Tampa, FL
Posts: 761
Total Cats: 19
Default

Quote:
Originally Posted by mx594m View Post
TS website tells me V-2.0.8 is the most up to date version

could the difference be due to me using a MS-PNP1 and you using either a 2 or 3?
Oh it's probably because you're MS1
My computer with TS 2.0.6 has it.

Basic Setup>General, Lags (near the bottom)
Attached Thumbnails
AFR signal oscillation in TS-basic_zps317458a2.jpg  
Impuls is offline   Reply With Quote
Old 10-29-2015, 10:53 AM   #31
Newb
 
Join Date: Oct 2015
Posts: 1
Total Cats: 0
Default same issue

Hello,

im having the exact same problem with my ProSport Wideband. Hast this ever been resolved or is buying some better controller the only way out?

Cheers

Martin
azmartin 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
MS PNP requires reading and following directions??? satisfied MEGAsquirt 141 10-06-2015 11:44 AM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 AM
New here, saying hi, here's what I'm workin with. SuperSneakySecretSquirrel Meet and Greet 5 09-06-2015 09:30 PM
ME221 Now has Autotune and Long Term Fuel Trim Tables Motorsport-Electronics ECUs and Tuning 0 09-05-2015 09:02 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 03:27 AM.