IAT and speed density question
IAT and speed density question I got a harness from psi conversions but it didn't have a plug for a IAT sensor. I'm doing a speed density tune I have a 2 bar map. Do u need the IAT to tune correctly? This is a 5.3l with a BW s475 and a th400 trans.
Or just plug it in. Get a Casper wiring harness that takes MAF/IAT plugs to one MAF plug (5-pin). Then either don't plug the MAF in on the other end to the wiring harness, or plug it in but tune it out. I think it's about $20 for the harness. But it's nicely made.
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I can't seem to find that on caspers website. Do you have any more info on it?
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Verdad Gallardo Call TSP. I can't find it either. But they included it with the 100mm MAF kit and it's shown in the dropdown menu as an option - so they have it for sale:
http://www.texas-speed.com/p-660-tex...ow-sensor.aspx
http://www.texas-speed.com/p-660-tex...ow-sensor.aspx
Teching In
Joined: Oct 2018
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Sorry to revive an old post but I figured this would be the best place to ask since I'm in the same situation. I also have a PSI harness and am wanting to go speed density on my 5.3 turbo build. I'm lost on what to do with the wiring for the maf sensor and do I need to convert it to an IAT sensor or can I just leave it unplugged? Also, will the computer not let it run if its not getting the info from the maf or is that part tuned out when I switch to SD? When the car is done I will be taking it to get tuned so it will not be done by me as this is my first go around. Any info is appreciated!
yes you will need to find the IAT sense and ground wires and tie them into a relocated sensor...most people including myself put the IAT in the intake.
you will need to adjust the IAT calibration in the tune file to match your new sensor.
without the MAF you will need to disable the MAF in the tune usually by zeroing out the values in the MAF fail hertz under engine diagnostics.
you will need to adjust the IAT calibration in the tune file to match your new sensor.
without the MAF you will need to disable the MAF in the tune usually by zeroing out the values in the MAF fail hertz under engine diagnostics.
Teching In
Joined: Oct 2018
Posts: 2
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yes you will need to find the IAT sense and ground wires and tie them into a relocated sensor...most people including myself put the IAT in the intake.
you will need to adjust the IAT calibration in the tune file to match your new sensor.
without the MAF you will need to disable the MAF in the tune usually by zeroing out the values in the MAF fail hertz under engine diagnostics.
you will need to adjust the IAT calibration in the tune file to match your new sensor.
without the MAF you will need to disable the MAF in the tune usually by zeroing out the values in the MAF fail hertz under engine diagnostics.
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