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Old 09-28-2016, 03:39 PM   #1
afasttransam
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Member#: 455479
Join Date: Sep 2016
Default How to data log a wideband

I just finished a motor build on my 04 WRX. The tuner said i can data long my wide-band threw the Mass air sensor. Which wire on the Mass air sensor do i cut to wire my wide band in. I think it is the Pink and blue. Can any one confirm this for me?
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Old 09-29-2016, 03:59 AM   #2
jon7009
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Member#: 394646
Join Date: Jun 2014
Chapter/Region: NWIC
Location: Oregon
Vehicle:
2003 WRX WRB 5MT
EJ205 TD04L FMIC SD

Default

It is the middle wire.

Once you send the 0 - 5v reference wire from the wideband controller through the 5v line that normally goes from the output of the MAF element, back to the ECU, you will need to change the logger definition in order to have the new voltage output that the ECU is logging as an AFR figure when logging it.

find MAF volts in the logger definition and change it's expression to reflect your new signal

if you're having a hard time with this, a few google searches (and namely searching on romraider) will help
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