VXBC9?? vane sweep - Ford Powerstroke Diesel Forum
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Old 01-08-2014, 06:32 PM
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VXBC9?? vane sweep

Does anyone know what vxbc9xx strategy that has vane cycle? The current one is a vxbc9F2 and the older one was a vxbc9na. Just looking for the current one to have a tune written in it with out paying for a reflash.
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Old 01-08-2014, 07:29 PM
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All of the vxbc9 series should have it

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Old 01-09-2014, 01:06 PM
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Can you see this happen watching a guage ( CTS etc. ) in the duty cycle ? If so ,how
much % change would you see ?
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Old 01-09-2014, 02:52 PM
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my VXAP2N2 has the full sweep in it. it'd be nice if there was some way of telling what the different strategies do or are for though...
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Old 01-09-2014, 03:42 PM
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Quote:
Originally Posted by HP MACHINE View Post
Can you see this happen watching a guage ( CTS etc. ) in the duty cycle ? If so ,how
much % change would you see ?
Yes, the VGT% will change from 14%-85% and you will hear the truck exhaust go from a low rumble to at high rumble or whistle.

The PCM commands the variable geometry turbo actuator duty cycle from 15% to 85% in a step pattern to help the turbo vanes achieve full movement. Vane sweep occurs when the following conditions are present:

The vehicle is stopped.
The EGR is commanded off.
The engine speed is less than 1,160 RPM.
The engine oil temperature is greater than a calibrated value.
Vane sweep repeats approximately every hour if the previous conditions still exist. Vane sweep may occur during scan tool commanded test functions.

Here is a video with using AE.
http://youtu.be/WCUUHeW0avk


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Old 01-09-2014, 03:44 PM
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Quote:
Originally Posted by Scolesy8 View Post
my VXAP2N2 has the full sweep in it. it'd be nice if there was some way of telling what the different strategies do or are for though...
I only have this link saved of the early VXAM strategies for the 03-early 04 PCM.

http://www.backglass.org/duncan/calsum6.pdf


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