Power Commander V questions

Here is what the instructions say:
TPS CALIBRATION
is important that the PCV software TPS read
0% when the bike is fully warmed up and at idle.
If it needs to be reset make sure the bike is fully
warmed up before resetting. With the engine off
click on Reset, open throttle to the stop and
close, then click OK. If your bike has fly-by-wire
throttle only reset the throttle position on a
dynamometer.
My commentary:
It has an incorrect picture of the process and inaccurate description of the buttons. They were no more help on the phone either and the guy said he hadn't actually done one himself after telling me how easy it was. His backup plan was to provide me the values they tell all customers to enter in their Sportsters which was even more narrow than typical. It was like .6 to 3.6. WTF. They also don't tell you how to actually populate the fields with the values using the tiny arrows, nor do they tell you how to get the wide open value in there without bouncing off the rev limiter.
Here are my (probably overly) detailed instructions:
Regarding the TPS calibration: Get it all connected and squared away. Download & install the software and firmware updates. Connect your laptop to the PC-V with USB cable and update firmware if applicable and enable RevXtend if you so choose. With RevXtend, you MIGHT want to fill in the 6250 RPM tables in by hand if they aren't already filled out, else the PC-V will just use the 6000 RPM tables since there are no values in there. Start the bike and let it idle on the jiffy stand till it's up to full operating temp. Not sure what the actual temp is we're looking for here, but you will see a temp readout from I believe the cylinder head, on the laptop. (Mine hit 280-300 in no time.) Once it has hit full operating temp, go into the TPS calibration menu and after ensuring that the throttle is CLOSED and bars straight, click on the left arrow to populate the field with the closed idle value. Mine is documented here on the forums, but it was something like 0.555. You should notice your idle settle in better from where it was assuming this value was zero, because the PC-V thought that your current .555 value was actually at part throttle. If the current readout value is lower than what filled in the left table, hit the arrow again to overwrite it. Now all you have to do is populate the wide open table on the right side. Flip the run / stop switch to kill the motor and IMMEDIATELY roll the throttle wide open and click on the right arrow. You only have about 3-4 seconds to do this till the ECU loses power and reads zero. I think my wide open value was about 4.5 or so.
This is probably THE most important step in installing a PC-V, yet I don't see nearly enough emphasis on it.
Last edited by Jackal; Oct 31, 2013 at 08:28 AM.
I think we're prob. running the same MAP. I THINK Fuel Moto helped create this MAP. Temp, elevation, humidity, maintenance, etc., etc. are going to make a difference. I think I will hold off on the dyno till I do headwork and cams.
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A canned map will get your bike running okay. But a dynotune will take it to the next level and if the tuner is good she'll run perfectly.
Unless there is something I don't understand about how the PC-V, like auto sensing / adjusting TPS values, then this is a VERY important step. At idle, before I set my low TPS value, the PC-V was interpreting 5-6% duty cycle so it was dumping more fuel than necessary till I set the low value and it settled down to 0-1%. In a PERFECT world the low value would be 0 and high 5.0, but as you can see from mine...it was more like .5 - 4.5.
I know on 97-03 F-150's for instance, if your TPS doesn't read between .97-.99 VDC, then you will have slight drivability issues / surging especially off idle.
Last edited by Jackal; Feb 23, 2012 at 08:22 AM.


