Gen 1 coyote LU47 tuning help !

[SultanHassanMasTuning]

if you have adaptive off your LTFT will be zero

you can take it slow
watch your lambda targets and trims and adjust your maf period accordingly

saw your log under wot ideally you should be around .98 load or so and will drop top rpm

this could be due to injector manipulation

[voodoo tuner]

if you have adaptive off your LTFT will be zero

you can take it slow
watch your lambda targets and trims and adjust your maf period accordingly

saw your log under wot ideally you should be around .98 load or so and will drop top rpm

this could be due to injector manipulation

attached : is my last update on the tune i have copied the values of LTFT+STFT that mstang_man post it from my log on last reply and multiply it on my Maf period table

also found stock 2013 boss 302 tune and copied all the tables that effect the intake volume on my tune ( because i have BOSS 302 IM installed )

i see you are going back and forth on the LU47 data on my tune what i'm missing here ?

i have copied all the injector data from stock 2017 Roush LU47 tune

also i'm struggling to dial Speedo on the car ( the cluster reads 80 km/h and the GPS shows 70 km/h )

used this but nothing change the same speed difference is there

Speedo > Vid Speed Limiter > set Disabled
Speedo > final drive Ratio > 3.55
Speedo > VSS tire Rev by Mile > 746.00 ( Tire size is 255/45-18 )
Speedo > N/V Base > 44.1383 i have used some math on this one ( 746*60)X(3.55) divided by 3600 = 44.1383 )

[voodoo tuner]

speedo options on my tune

and it's still off by 10 km/h

any help ?

[voodoo tuner]

updated on tune

tune base 5 cruise log and part to 5k log in 3rd

any suggestins i should dial on the tune ? the because the next log will be WOT LOG

also have same problem with VCM scanner showing all the data in custom table ( stft + ltft vs maf period ) as blank data

need help in that also

[mstang_man]

updated on tune

tune base 5 cruise log and part to 5k log in 3rd

any suggestins i should dial on the tune ? the because the next log will be WOT LOG

also have same problem with VCM scanner showing all the data in custom table ( stft + ltft vs maf period ) as blank data

need help in that also

not sure but whats is in red is factory, not sure on n/v Base, and tire revs per mile in the middle, put your tires in their and test

[voodoo tuner]

not sure but whats is in red is factory, not sure on n/v Base, and tire revs per mile in the middle, put your tires in their and test

Just tried that and test

Cluster is reading 120 KM/H , GPS Reads 101 KM/H so it’s off by 19 km/h

I have tried your changes in the pic still the issue is there

Also tried again my Revs Per/mile which is 746 but still reads Wrong

Idk if the Trans Tune is involved on this or not ?!

[mstang_man]

Just tried that and test

Cluster is reading 120 KM/H , GPS Reads 101 KM/H so it’s off by 19 km/h

I have tried your changes in the pic still the issue is there

Also tried again my Revs Per/mile which is 746 but still reads Wrong

Idk if the Trans Tune is involved on this or not ?!

I posted this awhile back when there was another user having the same issue.
with SCT software Axle Ratio switch needs to be set to (0), set your axles ratio I.E. 4.1 for 4.10, Max value for axle ratio for IPC ( set above new Gear ration IE 4.10 to (4.15), and lastly, Min Value for Axle ratio for IPC set Below gear ratio IE 4.10 ( set below to 4.0500) this allows PCM to keep up with tire wear and avoid wrench light. if the stang is automatic you will have to figure out your N/V

specifically for AT 2015+
Rear Axle Ratio => 3.549
Switch for Axle CDP => 0
Switch for Tire CDP => 0
Tire Revs Circumference Mm =>...To circumference in millimeters

Last but not least, Gear Ratio => Base N/V of Vehicle => To the correct N/V
You can also set the Use Final Ratio-> Enabled, and then whatever you put in the Ratio should be all it uses and disregards what is in the BCM. Havent tried this tho.
Lastly, have you tried the features "Special functions" under the VCM scanner. It will ask you to enter the gear ratio and then the rev/mile for the tires.

[voodoo tuner]

I posted this awhile back when there was another user having the same issue.
with SCT software Axle Ratio switch needs to be set to (0), set your axles ratio I.E. 4.1 for 4.10, Max value for axle ratio for IPC ( set above new Gear ration IE 4.10 to (4.15), and lastly, Min Value for Axle ratio for IPC set Below gear ratio IE 4.10 ( set below to 4.0500) this allows PCM to keep up with tire wear and avoid wrench light. if the stang is automatic you will have to figure out your N/V

specifically for AT 2015+
Rear Axle Ratio => 3.549
Switch for Axle CDP => 0
Switch for Tire CDP => 0
Tire Revs Circumference Mm =>...To circumference in millimeters

Last but not least, Gear Ratio => Base N/V of Vehicle => To the correct N/V
You can also set the Use Final Ratio-> Enabled, and then whatever you put in the Ratio should be all it uses and disregards what is in the BCM. Havent tried this tho.
Lastly, have you tried the features "Special functions" under the VCM scanner. It will ask you to enter the gear ratio and then the rev/mile for the tires.

i just checked on my IPC there's no something called Max/Min value for the gear ratios

also in VCM Scanner Special Functions i have only this options :

1- KAM reset
2- Crank Relearn
3-trans Reset Adaptive

VCM Scanner 4.10.7 Version

Screenshot (25).png

[mstang_man]

i just checked on my IPC there's no something called Max/Min value for the gear ratios

also in VCM Scanner Special Functions i have only this options :

1- KAM reset
2- Crank Relearn
3-trans Reset Adaptive

VCM Scanner 4.10.7 Version

Screenshot (25).png

I did some research to see what all SCT changes in the Software, and the Switch and Gear ratio are only changed. Now I know For 2015-2019 Mustangs, Ford programs the tire size of the car on BCM. IDS or Forscan can program BCM ad factory data jut need to know the Hex code.

[mstang_man]

[QUOTE=mstang_man;687251]I did some research to see what all SCT changes in the Software, and the Switch and Gear ratio are only changed. Now I know For 2015-2019 Mustangs, Ford programs the tire size of the car on BCM. IDS or Forscan can program BCM ad factory data jut need to know the Hex code.[/QUOTE

Si if you measure the tire radius from the ground to center of axles, i have a calculator that will give me estimated N/V / tire revs per mile

[voodoo tuner]

I used on my N/V base this formula:

( Tire Rev /mile * 60 ) x ( Gear Ratio )
————————————————————- = N/V base
3600


I tried multiple times doing math with this Formula but until now this not solve the problem

[mstang_man]

I used on my N/V base this formula:

( Tire Rev /mile * 60 ) x ( Gear Ratio )
————————————————————- = N/V base
3600


I tried multiple times doing math with this Formula but until now this not solve the problem

Do you have a Forscan Software? Quick fix if so.

[voodoo tuner]

Yeah i have it but it doesn?t work with custom tune only stock tune

[mstang_man]

Yeah i have it but it doesn?t work with custom tune only stock tune

Speedo Calibration is in the BCM. you have to modifiy the Asbuilt data. I can generate that code for asbuilt data for BCM