Hi there,

Not particularly an ECU issue.
Was using old 2.2.0 software (which worked fine before)
Not too sure if my settings are incorrect or if there is a different issue.


Trying to use the Lambda overlay function to datalog AFR's for street tuning.

All sensors are datalogging normally, including AEM wideband wired into D10 (ELD)

-Normal fuel tables show all the cell values and can be changed without issue.

-Lambda overlay remains blank while the datalogging function is turned on. The "highlighted" operating range area hovers around the map normally, but will stay blank and will not mark the AFR values.

-Estimated fuel change also remains blank, "highlighted" operating area hovers around normally, no values marked down.

-Target lambda values are shown normally and are default.


Tried updated my current software to the latest 2.2.7
-No change

Turning onboard datalogging on/off does not change anything
-No change

Tried changing overlay settings
-No change

-Tried on another S300 Ecu in another vehicle
-Same issue, Lambda overlay stays blank with the highlighted cells hovering around the map with throttle input.

Nothing else has changed since this function was previously working without issue.

Is there something in Smanager that I am missing, settings that may have accidentally been changed?

Any help is appreciated.

 

Having the same issue also...

 

first make sure all sensors work properly and are datalogging correctly, specifically the VSS. also make sure you don't have too cold of a thermostat installed. 160 is too cold.

next, in s300 software, at top go to Options, settings, sensor overlay tab. under conditions, set the parameters for when you want it to record. I use 0-12500 rpm, 0-5000 engine load, 1%-120% throttle, 25mph-155mph vehicle speed, 168-230 water temp, 10-12500 overlay value, 1s transition delay.

also, try to only datalog in a specific gear. if you datalog in multiple gears it can and will throw your readings off. bumpy roads will also drastically throw your readings off. I strongly suggest 3rd gear only. so you'll want to start/stop the datalog as necessary

 

Sorry, maybe I was not being clear enough.

I am not trying to do "onboard" datalogging, I am trying to datalog AFR's on the Lambda overlay via laptop, on the fly. In which case onboard datalogging is turned OFF. The overlay parameters you are talking about remain default and are similar to the ones you listed and have not changed, yet the overlay function still does not work.

Like I stated in my post, all sensors (including the AEM Wideband) are datalogging in the sensor list normally.

The "normal" fuel tables are showing up with numbers/colors without issue, as soon as you switch to "lambda overlay" the table is blank and remains blank even when the "highlighted" operating cells hover around the map when the throttle is engaged.

As also stated before, this function was originally working normally, AFR values were marked down in the overlay table and would datalog these values all the way through a fourth gear pull and the AFR values could be looked at/changed and sent to the ECU for another pull within minutes.

I am wondering if anyone else has had and fixed this problem, if I am missing some settings, or tabs or if there is a software glitch of some kind.

 

I know you are not trying to do onboard datalogging, you were plenty clear enough for me to know that.
the overlay parameters I spoke of are for datalogging the lambda overlay via laptop.
double check your settings, and compare them to mine, and compare them to the parameters that the engine actually runs.

ie: if the vss doesn't work, it wont datalog. if coolant temp is lower than your setting, it wont datalog.
if everything is set up properly and you can't find any reason why it wont datalog, just uninstall smanager, and reinstall the newest version. then download the map from the ecu, re-set the parameters I speak of, and try again.

 

When was the last time you rebooted your laptop?

 

Not long ago, maybe a week.

 

LMAO!! that literally made me laugh out loud!

seriously? a week? I reboot my pc more often than that, let alone either of my laptops

 

What does that have to do with anything?

When I said a week. I meant a week ago today, as in Monday/Tuesday last week. The tuning session was on Thursday, so only 2 days later.

My laptop is kept in perfect running condition. Plus I am not on it everyday. It can stay asleep (shut off) for days, if not a whole week. It's not like my laptop stays turned on and running for weeks. Wtf??

Rebooting does absolutely nothing and makes no difference.

 

Try rebooting it before saying it won't work.

 

^LIKE^