Dash Command with mafless tune

[Asmodai78]

even all,
Is there anyone with a mafless tune who runs dash command and has their fuel usage, power and torque displays working?

Ive notice that if I plug the maf back in then those readouts work but if I just plug an IAT sensor in then they stop working, is there any particular PIDs that need to be monitoring?

thanks for the help

 

[DAJOKER]

Doesn’t it mean that when you’ve got a MAFless tune, the engine is “told” what to do.
Where as with the MAF in, the engine can do all sorts of wizardry.

Maybe your sensors don’t work, because they’ve essentially been turned off?

 

[Asmodai78]

But they all work when the Maf sensor is plugged back in

 

[DAJOKER]

Not sure mate.

 

[07GTS]

nothing changes when ur mafless its purely just the maf signal not there so it reverts to SD operation, the iat should be used as it needs that, the ecu's torque calculation should work but the hp reading might be a calculation within the app as the ecu only estimates torque not hp, any fuel usage isnt a pid its a calculation the vehicle dash works out based on actual pids

 

[Asmodai78]

yeah well I thought the same, however they stop working the second I unplug the maf sensor and plug the IAT sensor in

 

[07GTS]

is this all just the readings on the app ?

 

[07GTS]

Doesn’t it mean that when you’ve got a MAFless tune, the engine is “told” what to do.
Where as with the MAF in, the engine can do all sorts of wizardry

the engine is always told what to do the maf isnt anything special it only reads airflow, stock uses blended maf and mafless as it needs both, or u can go mafless, either way the use of 02's correct the fueling during CL operation

 

[Asmodai78]

is this all just the readings on the app ?

yeah, if I look at the data grid display, fuel (instant and average) come up as N/A and so does power and torque

ill get some screen shots tomorrow

 

[07GTS]

i dont know much about the app but it will be an issue with it as none of those change at the ecu end, maby they use the maf as a calculation but i would have thought there would be a update for people running mafless could be worth looking into