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Power FC S4 PFC initial setup

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Old 09-09-18, 09:38 AM
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S4 PFC initial setup
Hi, I'm looking for an advice (or paid consulting) on setting up PFC. There are no local specialists so going to tune shop is not an option. At least I would like to have a no major/hardware problems before visiting dyno.

Have an S4 NA, no emissions, removed BAC/thermowax/double throttles, installed PFC via Banzai adapter, datalogit/wideband/fuel oil pressure sensors.

Here is the first launch log (have to hold throttle a little because bypass air screw was not adjusted):
https://drive.google.com/open?id=1ci...5drv6mpOtyY4Pn

My ECU tuning knowledge is VERY limited and I don't get some things:
-Working on 1-1.5k RPM without load almost on bottom of the map table
-IGL chart is very strange, reading sometimes becomes negative but map watch shows correct cell (maybe PFC tries to correct ignition timing for some reason)
-Knock jumps to 20 about 2k RPM



Last edited by wongfei; 09-09-18 at 09:42 AM.
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Old 09-09-18, 10:13 AM
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It looks like you do not have the map sensor hose connected to a vacuum source.
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Old 09-09-18, 10:47 AM
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Its connected on bottom nipple of UIM. Will check maybe something went wrong there..
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Old 09-09-18, 11:24 AM
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That vacuum source is fine, you need to make sure there is not a massive vacuum leak. Your map sensor reading never changes, in the screen shots.
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Old 09-10-18, 08:58 AM
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Also I still see the thermowax and double throttle
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