EGO gauge - small issue

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Lindane
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EGO gauge - small issue

Post by Lindane »

Hi,

I use a AEM UEGO 30-4100 and the gauge in the car shows correct (I suppose) values.
The EGO gauge in Tuner Studio only shows 12.10 all the time.
Is there anyone that know what I've done wrong?
I use MS2/Extra and there I chose "single wide band" and "locally".
Volvo164.msq
Regards, Kristian
LT401Vette
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Re: EGO gauge - small issue

Post by LT401Vette »

Did you do the "Calibrate AFR table" under the tools menu?
Phil Tobin
EFI Analytics, helping to simplify EFI
Next Generation tuning software.
Supporting all MegaSquirt versions and firmwares.
http://www.TunerStudio.com
http://www.efiAnalytics.com/MegaLogViewer/
Support the firmware running your engine:
http://www.msextra.com/doc/donations.html
Lindane
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Posts: 28
Joined: Sat Aug 06, 2016 4:58 am
Location: Kalmar, Sweden
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Re: EGO gauge - small issue

Post by Lindane »

Thank you for the quick answer!

I searched the other threads and saw a couple of questions just like mine so I've just been out calibrating it and it works fine now.

I have another question though but I think this is the wrong forum for it?
My rpm gauge (in Tuner Studio) jumps up 500-1000rpm's for less than a second and when it does the pulse width goes up from app 6 to app 12 ms and the EGO goes down towards AFR 10 (TPS moved a little too; maybe from 1 to 2-3%). I've had this strange problem for about a week and it's getting worse (more often), maybe 1 time per 20sec now (It's not only when idling but I havent noticed it when going full throttle). Do you know what the problem can be? I'm thinking about the signal from the Hall sensor maybe?

Update from this morning: Today it was cold outside, just 10°C, and when I drove off to work the car didn't have these problems until it got warm.
Regards, Kristian
LT401Vette
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Re: EGO gauge - small issue

Post by LT401Vette »

The pulse width change is likely just an effect of the RPM spikes.


How are you triggering it?
msq and datalog?
Phil Tobin
EFI Analytics, helping to simplify EFI
Next Generation tuning software.
Supporting all MegaSquirt versions and firmwares.
http://www.TunerStudio.com
http://www.efiAnalytics.com/MegaLogViewer/
Support the firmware running your engine:
http://www.msextra.com/doc/donations.html
Lindane
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Posts: 28
Joined: Sat Aug 06, 2016 4:58 am
Location: Kalmar, Sweden
Contact:

Re: EGO gauge - small issue

Post by Lindane »

Hi and thanks for helping,

Yes, I think so too.

I have three steel teeth with 120 degrees between them on the crank shaft and a hall sensor.
I don't have a datalog but my msq (with no calibrated AFR) is attached in my first question in this topic.
Regards, Kristian
Lindane
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Posts: 28
Joined: Sat Aug 06, 2016 4:58 am
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Re: EGO gauge - small issue

Post by Lindane »

Hi again,
I have two log files from today but they were too big to post here, if someone wants to help me I can e-mail them.
Some things to know before reading the log files:
* Car has an automatic transmission
* I tried hard to be smooth on the accelerator.
* real rpm was quite constant
* in the first log I had to start the car 5 times I think, because it is sometimes hard to start when warm.
Again, thanks for all the help!
Latest MSQ:
Volvo164.msq
Here are two screen dumps of my log:
VolvoLog1.jpg
VolvoLog2.jpg
Regards, Kristian
LT401Vette
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Re: EGO gauge - small issue

Post by LT401Vette »

Looks like trigger noise.
Phil Tobin
EFI Analytics, helping to simplify EFI
Next Generation tuning software.
Supporting all MegaSquirt versions and firmwares.
http://www.TunerStudio.com
http://www.efiAnalytics.com/MegaLogViewer/
Support the firmware running your engine:
http://www.msextra.com/doc/donations.html
Lindane
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Posts: 28
Joined: Sat Aug 06, 2016 4:58 am
Location: Kalmar, Sweden
Contact:

Re: EGO gauge - small issue

Post by Lindane »

Hi!

Do you believe it is the hall sensor itself, or something else that is the problem?
VolvoHallSensor.jpg
Regards, Kristian
Lindane
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Re: EGO gauge - small issue

Post by Lindane »

Hi,

I just replaced my hall sensor with a new identic one and it seems like it was the hall sensor that was the biggest problem.
I have some issue with the TPS so I will look into that but overall the car runs quite well now.
Volvo_Log_New_Hall_Sensor.jpg
Regards, Kristian
Lindane
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Posts: 28
Joined: Sat Aug 06, 2016 4:58 am
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Re: EGO gauge - small issue

Post by Lindane »

Just for fun, here's a video of me and my youngest son cruising around in our village:
https://m.youtube.com/watch?v=c52LUkEpyvM
Regards, Kristian
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