Pc iii usb - Honda RC51 Forum : RC51 Motorcycle Forums
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 03-11-2011, 02:56 PM Thread Starter
Senior Member
raleighp's Avatar
Join Date: Mar 2011
Location: Keller,Texas
Posts: 606
Mentioned: 0 Post(s)
Quoted: 3 Post(s)
Pc iii usb

Hi, I am sure this has been answered before, but I couldn't find the thread.

What exactly is a PCIII USB - and what does it do ??

I googled PCIII and know it stands for Power Commander, but that is all I know.

Thanks in advance - Kirk Out

raleighp is offline  
Sponsored Links
post #2 of 2 (permalink) Old 03-11-2011, 05:27 PM
SubSailor's Avatar
Join Date: Oct 2008
Location: Sarasota, FL
Posts: 6,467
Mentioned: 24 Post(s)
Quoted: 89 Post(s)
The power commander unit interconnects between the ECU and injectors.
It allows modification of injector open timing (and therefore amount of fuel) beyond that of the ECU.
This allows tailoring of air/fuel ratio for optimum power.
If the ECU was fully re-programmable, there would be no need for a power commander.

The PCIIIUSB is the 3rd generation of Power Commander that uses a USB interface to upload/download maps for air/fuel ratios.
The earlier PCII, PCIII, and PCIIIr use a serial port for communication.
The PCIIIr has the capability to change ignition timing for each cylinder (r for race).
SubSailor is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Honda RC51 Forum : RC51 Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome