Power Commander - WTF?

[Gramps]

Maybe you should have it tuned properly on a dyno. Mine is also stock except for the air box mod & a K&N filter. There was a noticable change (good) in throttle response & smoothed out the low rpms surge.

My gas mileage has always remained consistent & dependent on how aggressive I ride. The highest I get is 50 mpg when I stick to the posted speed limits. Me thinks you may not have the correct map.

 

[daddyman]

Chris D,

Mine has also been pretty bad with the mileage and will give your map idea a try.

(Quite smooth to be sure, however.)

But, umm...

For the negative numbers, did you halve them also, or just leave them alone? i.e. Did -12 become -6, or what?

Thanks!

 

[Shadow]

So I ask you - Why do people put these things on their bikes?

Gen 1 bikes like yours do not have the issues that the Gen2 bikes have, 06 and up.

Commanders make a big difference to Gen 2 models

 

[Feejer/Weejer man]

I have run the PCIII on my 03 for 5+ years now. I took away the low speed surge and when I add the Holeshot cans then the full system it made this bike rock through all ranges of rpm's. I tried generic maps and some resulted in less mpg's. when I added the header I had the bike put on the dyno for a custom map. What a difference. I get 42-44 on the road with out of Ca. gas, as high as 46 during the NAFO trip. I get about 38 in the commute. There are tons of exixting threads on this and the constant is about 10% drop in mileage during normal speeds.

 

[CHRIS_D]

Chris D,
Mine has also been pretty bad with the mileage and will give your map idea a try.

(Quite smooth to be sure, however.)

But, umm...

For the negative numbers, did you halve them also, or just leave them alone? i.e. Did -12 become -6, or what?

Thanks!

The negative numbers I left alone.

I did have to go back and make some of the positive numbers higher (by adding a 1 or 2) to get the smoothness back in some RPMs ranges. It's going take a while to get it perfect but the main test will be the HWY mileage. If I can't get the Hwy mileage back up to around 37 MPG doing 80 MPH I will most likely take the PC3 off and go back to stock.