Need help with calibrating MAFT with DSMlink

[DSMboostin15]

Like the title states, I'm finally calibrating my MAFT with DSMlink. I've already adjusted the 50Hz slider to +8%, but when it comes to the 150Hz slider, the STFT and LTFT-Lo still read the same value (0.0%) as it did when I adjusted the 50Hz slider. And a side note here, for idle tuning, should I go by the WB (LC-1) or the A/F ratio in Link. I've also posted a copy of the log file if it helps. Thanks.



Ryan

[1992awdlaser]

You need to log ltft mid for the 150hz slider. It is going to take some time for the values to actually change when it comes to the fuel trims. Always go by the wideband display first then what dsmlink says the wideband if there is a problem with the display. If you have a wideband (which obviously you do) you don't want to look at the air/fuel estimate in dsmlink because it is just that, an estimate.

Hit F4. Click once on boostest. Then click on props. Input your altitude and save it to the car.

[DSMboostin15]

Ok, thanks. I'll have to try that. I'm sure that I'll have many more questions.

[ZmanIV]

I thought you were not supposed to touch the MAFT settings at all just leave them at zero and adjust link like normal.

[1992awdlaser]

Originally Posted by ZmanIV

I thought you were not supposed to touch the MAFT settings at all just leave them at zero and adjust link like normal.

That is correct. He is almost ready to start calibrating the gm maf through dsmlink. Your not actually changing the maf-t settings. You are making sure the ecu is seeing the right amount of airflow from the maf. Right now he is doing idle and cruise tuning.

[ZmanIV]

Ok so he is not calibrating the MAFT just adjusting the injectors to his setup.

[snowborder714]

Originally Posted by ZmanIV

Ok so he is not calibrating the MAFT just adjusting the injectors to his setup.

He is calibrating his GM MAF. He is not touching his MAF-Translator at all. Just adjusting the airflow sliders in DSMlink to make the GM MAF read correctly/more accurate.