40 years a mechanic.....and I'm an error code ID10T....
I have been checking the K&N air filter since I got the Rocket, ALWAYS CLEAN!!!!! I figured the altitude is why it ran as it DID.....
WELL, the air flow actually goes from the center to the outside.... I've been looking at the outside, like most filters....the inside was PLUGGED NEAR SOLID!!!
Wow does it start, idle, ride, cruize and accelerate like it SHOULD!!!!! (Bet I go back to 220 miles a tank....DUH!!!!