ECMlink SD - MAF Comp Setup

[Ajwit87]

I have a 1990 that's currently on Link v3, running Speed Density. I've never had a 1G MAF to be able to start the process of getting the MAF Comp/VE Tables initially set up.
The car currently runs and drives well, but tuning it has been a headache and I finally figured out why (I think).

The MAFRaw is reading 27Hz and MAF is reading 17Hz at Idle. On a steady 10% throttle at 2500rpms, those values are 71Hz and 45Hz respectively.
I know those numbers should be much higher (like x10 or more) but I can't find which setting I have scaled or entered incorrectly.

MAF Comp Tab has Speed Density selected as the MAF Type. Global Scalar is 0. Disable MAF Comp w/ SD is NOT checked.
Speed Density Tab is around 50 at idle and 60-80 everywhere else.
ECU Inputs are: MAP - Baro / MAP Sensor Type - Omni Power 4 Bar / None of the boxes on the right are checked

Any help is appreciated. Thank you!

Edit: It is not the Talon that is listed in my profile, that was a previous car of mine.

 

[habitatguy187]

Upload a log and we will really be able to help you out. And also, definitely check that box that "disables maf comp with sd"

 

[Ajwit87]

Checking it made no difference, but I'll leave it on. Thanks!

Log is attached

 

[habitatguy187]

Ok so first, your profile says you have 1200cc injectors but you have link set up for 1400s. Also, do you have an fpr? What's your fuel pressure at? If you don't have an aftermarket fpr then your fuel pressure should be 37.5 psi. Despite this, your car is still running super rich according to the wideband. Has it been calibrated in the last year? Any pre-o2 sensor exhaust leaks?... the o2 sensor isn't cycling like it should at all.

 

[Ajwit87]

1200cc is correct, I subtracted from the global to take out even more fuel since I’m rich, that’s why it looks like 1400cc.

Base fuel pressure is 37.5, at idle it’s around 32.

I have an AEM wideband that’s maybe 2 months or 5 engine hours old. It’s installed 24” from the turbo. It is also on the Baro/o2 pin for the ECU. There is not a narrowband on the car at all.

Airflow perRev is .24-.25 at idle. Global is at -68% with dead time at 375 and I’m still rich.
I seemingly can’t take enough fuel away.

 

[habitatguy187]

Do you believe that the car is actually running rich? How do your plugs look?

Also, when I was looking at your log, under "displayed values" I didn't see a wideband other than "linwideband". Is that how you have it set up? Did you manually enter the linwideband values? I didn't think to look at the time and I'm not on a pc now.

 

[Ajwit87]

I did manually enter the Wideband voltage values. When I did it, I still had the narrowband in its original location to verify the readings were correct.
The WB hits 11.0 ish on WOT, and fluctuates (10.5-16) like it should throughout the range. It’s just rich (11-12) at idle.

 

[habitatguy187]

If it's only rich at idle then I would make deadtime adjustments. I would start with pulling deadtime and you might be able to get it lean enough at idle to then add fuel to your global and get it set closer to 1200cc

 

[Ajwit87]

When I add deadtime (Ex. I'll make it 400 or higher instead of 375), it makes it even more rich and doesn't lean it out at all.
When I remove deadtime (lower than 375) it also does not lean it out.
I'm thinking that the InjBatteryAdj may be out of whack.

The vehicle already had ECMLink set up but very poorly. I am trying to make it right.
I have not seen an option yet to start from scratch and do this from step one.

 

[habitatguy187]

v3configs [ECMTuning - wiki]

www.ecmtuning.com

Drop that deadtime to 200 and it should definitely make a change.