2013 TT coyote tunning

[twotons]

new to this tunning on the ford coyote mustang, have fuel injector info, car runs and drives on the dyno, cant figure out enrichment under low load and heavy load, timing tables seem to be doing what i have commanded but cant get it to fuel,

help would be greatly appreciated

thanks in advance

[Jn2]

Could you post the tune and a datalog?

If you are having issues with how quick it adds fuel you should increase the "Fuel Enrichment Rate", stock it's .050, increase this to .100 and maybe even more if needed

[bbrooks98]

Could you post the tune and a datalog?

If you are having issues with how quick it adds fuel you should increase the "Fuel Enrichment Rate", stock it's .50, increase this to .100 and maybe even more if needed

I usually use 1.0 and is probably what you meant?

[Jn2]

I usually use 1.0 and is probably what you meant?

My bad, forgot a zero, stock is .050 lambda/second, increasing it to .100 lambda/second should speed up the fueling, could also try .200 lamnda/second as well.

[twotons]

Torres HM 2.hptArmondo Torres 2013 GT Stock.hpt16-12-28 14-49-14.hpl

[Jn2]

Some things I'm seeing are(there might be more, but your log only shows a quick hit of the throttle that lasts like 3 seconds)

- MAF doesn't seems to be dialed in, you are +8 before you go WOT and +15 when you finally achieve commanded lambda. During low loads you are anywhere between -16 to -25 at times...
- You aren't logging nearly enough PIDs(add Spark Source, Fuel Source, VCT Source, Torque Source, IPC Wheel Torque Error, Driver Demand Limit Source)

Suggestion for now:

- Engine>Fuel>OL & CL > Fuel enrichment rate = .200/second (which is less than your .900 you have now, but still 4x faster than stock)
- Engine>Airflow>General>Airflow vs. Voltage = Set this back to stock values and leave them alone
- Engine>Airflow>General> MAF Airflow vs MAF Period <<<MAF period is what you adjust to calibrate the MAF
- Engine>Airflow>Variable Camshaft>OP Enrichichment Req = Disable (disable this, it was the reason my car would stay stuck at lambda 1 during WOT until 6,000rpm, was really annoying)

Drive the car while dataloging MAF period vs STFT(since you have LTFT disabled) in order to populate the necessary value for you to calibrate the MAF. Don't try any more WOT pulls until that MAF is dialed in.


MAF period for your historgram(just copy and paste it like it shows up on my pic)
83.3 101 107 114 119.8 123 128 132 136 139 143.5 150 160.5 173 178 183.5 188 193 200 207 210 215.5 220 226 242 259 275 290 320 330 360 410 450 500 540 590 605 635 650 1485

Here is the Math I used for STFT, go ahead and create this one for yourself using the same set up I have below:
Screen Shot 2016-12-28 at 6.17.38 PM.png

Here is the histogram you will create using the Math PID you just created. Copy and paste the MAF period values I posted a bit higher up on the last row where I have it one mine.
Screen Shot 2016-12-28 at 6.17.24 PM.png


Once you have those things set up you can start doing some driving around, varying RPMs and throttle, avoid OP/WOT, you want to populate the histogram as much as possible with as many hits/cell as possible. I usually just do a long 30 minute continuous drive through streets and highway. Once you have it populated, copy them and special paste them into the MAF period. There is more details on this over on the MAF thread

http://www.hptuners.com/forum/showth...ay-to-tune-MAF

[murfie]

For the math you can use more than just one STFT variable. I don't really see the point in using math feature other wise
You can add both banks together put that in brackets and divide by two to get the average of your STFT. There's a few premade maths for both fuel trims and lambda error you can check out. All you have to do is make sure the variables in the formulas where in your scanner and you can use them in your charts and graphs.

Another great feature is the filter for the histograms. Say you only want to see data for above a certain load or around a certain lambda reading, you can use greater than or less than symbols and boolean logic against the variables to target the zone of a certain table you are trying to tune as well as eliminate some of the extra data skewing your averages.

[SultanHassanMasTuning]

torque and inverse

[twotons]

Some things I'm seeing are(there might be more, but your log only shows a quick hit of the throttle that lasts like 3 seconds)

- MAF doesn't seems to be dialed in, you are +8 before you go WOT and +15 when you finally achieve commanded lambda. During low loads you are anywhere between -16 to -25 at times...
- You aren't logging nearly enough PIDs(add Spark Source, Fuel Source, VCT Source, Torque Source, IPC Wheel Torque Error, Driver Demand Limit Source)

Suggestion for now:

- Engine>Fuel>OL & CL > Fuel enrichment rate = .200/second (which is less than your .900 you have now, but still 4x faster than stock)
- Engine>Airflow>General>Airflow vs. Voltage = Set this back to stock values and leave them alone
- Engine>Airflow>General> MAF Airflow vs MAF Period <<<MAF period is what you adjust to calibrate the MAF
- Engine>Airflow>Variable Camshaft>OP Enrichichment Req = Disable (disable this, it was the reason my car would stay stuck at lambda 1 during WOT until 6,000rpm, was really annoying)

Drive the car while dataloging MAF period vs STFT(since you have LTFT disabled) in order to populate the necessary value for you to calibrate the MAF. Don't try any more WOT pulls until that MAF is dialed in.


MAF period for your historgram(just copy and paste it like it shows up on my pic)
83.3 101 107 114 119.8 123 128 132 136 139 143.5 150 160.5 173 178 183.5 188 193 200 207 210 215.5 220 226 242 259 275 290 320 330 360 410 450 500 540 590 605 635 650 1485

Here is the Math I used for STFT, go ahead and create this one for yourself using the same set up I have below:
Screen Shot 2016-12-28 at 6.17.38 PM.png

Here is the histogram you will create using the Math PID you just created. Copy and paste the MAF period values I posted a bit higher up on the last row where I have it one mine.
Screen Shot 2016-12-28 at 6.17.24 PM.png


Once you have those things set up you can start doing some driving around, varying RPMs and throttle, avoid OP/WOT, you want to populate the histogram as much as possible with as many hits/cell as possible. I usually just do a long 30 minute continuous drive through streets and highway. Once you have it populated, copy them and special paste them into the MAF period. There is more details on this over on the MAF thread

http://www.hptuners.com/forum/showth...ay-to-tune-MAF

2013 Coyote twin turbo.hpl

here is the last datalog, i entered the wrong one

[UMSTuning]

Im chasing one with this as well...commanding .70 lambda, ecu shows a pretty steady .75 pulling a good bit of stft (tried to skew the maf to add fuel) commanded equivalency is nowhere near commanded in the wot lambda tables. and im showing 11.5 at first hit of boost, tapering up to 12.5 on my wideband.

[15PSI]

UMSTuning, Can you please provide a datalog?

[rshoe09]

ums tuning what boost and fuel are you running

[UMSTuning]

14psi, racegas

[SultanHassanMasTuning]

you need to work on your torque model and rescale it torque and inverse

rescale your MBT tables