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--- sdveadjsdratio [2009/06/15 06:59]
dmertz
+++ sdveadjsdratio [2009/06/15 14:01]
twdorris
@@ Line 11: / Line 11: @@
 The [[v3mafadjcombft|MAFComp Adjust (CombinedFT)]] page describes an excellent process for dialing in your mass airflow sensor.  Please read through this page carefully and make sure your mass airflow setup is calibrated as well as you can get it before attempting to use the **SD VE Adjust (SDRatio)** function.
@@ Line 29: / Line 31: @@
 To use this tool, you need to capture some data from your ECU while you drive around on the mass airflow sensor, before switching the Base MAF setting to Speed Density.
-**Note:**  As normally installed, first generation MAF translators get their ground from ECU sensor ground via the Mitsubishi MAF connector and draw a moderate amount of current, particularly when powering the GM MAF sensor at higher airflow, so the pressure and temperature readings seen by the ECU will change a little if you later unplug the GM MAF or MAF translator, upsetting the VE table calibration.  Changing the translator's ground from ECU sensor ground to chassis ground instead will eliminate this effect. Cut the MAF translator's ground wire between the translator box and the Mitsubishi MAF connector and connect the end of this wire coming from the translator to chassis ground. Leave the wire end that remains on the translators Mitsubishi MAF connector isolated and insulated.
+**NOTE:**  As normally installed, first generation (not Gen 2 or MAFT Pro) MAF translators get their ground from ECU sensor ground via the Mitsubishi MAF connector and draw a moderate amount of current, particularly when powering the GM MAF sensor at higher airflow, so the pressure and temperature readings seen by the ECU will change a little if you later unplug the GM MAF or MAF translator, upsetting the VE table calibration.  Changing the translator's ground from ECU sensor ground to chassis ground instead will eliminate this effect. Cut the MAF translator's ground wire between the translator box and the Mitsubishi MAF connector and connect the end of this wire coming from the translator to chassis ground. Leave the wire end that remains on the translators Mitsubishi MAF connector isolated and insulated.
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