I bought a Power Commander a couple of week ago for an '06 lowrider with a
Arlen Ness A/C and Dyna Power slip-ons. First install I blew the starter relays,
which seems to be unrelated but cost me a few days in the shop. Second install
loaded the map the Dyno recommended, bike wouldn't start unless at full throttle.
I then tried a few other other maps ending with the map for stock components.
No power at all, felt like it was running on one cylinder. Kept getting an engine
light. I called Dyno again, they couldn't help. Out of frustration I sent it back.
Talking to the dealer where I bought the bike, they are Power Commander tuner
specialist, told me to go ahead put the A.N. A/C back on. Keep an eye on how it
runs but they thought the O2 sensors may compensate. They recommended a
base run on the dyno to check fuel/air ratios to be safe. I guess what pisses me
off is, that it seems everyone here had no problems with there PCIII's.

 

If you'r gonna pay for a dyno tune,why not go ahead and get another pciii and have it tuned with the pciii I think you just got a bad one the first time. Mine has done fine and bike runs great. In fact it ran great before the tune,just too rich.

Good Luck

Tom