Hy everybody... I have a problem with my 2006 Sportster 883custom. I checked the codes and i got displayed P0602 - Calibration Memory Error Carb ( I cleared the code but it still shows). Don't know whats wrong because everything runs fine... I thought it's maybe conected with the fuel. I bought fuel on the highway on a station where I never bought before and after a few km probably when the new fuel started to reach the engine the little yellow light startet to show. Has someone an idea could this be the problem or is it somethin more serious???

 

For my '07 a P0602 is "Calibration Memory Error Carb". I don't have a clue what this means and I don't see it referenced in my service manual. Try clearing the code and see if it returns. If not, I wouldn't worry about it.

 

I also have nothing referenced in the service manual... I cleared it but is cames back... I tought to wait until I use the whole tank of fuel and than trie to buy fuel on my regular gas station and see if it occures again. I red somewhere a post considering that fuel can cause the problem with the yellow light showing.
Now it's high season here in Croatia and many tourists come, i heard that some gas station on the highway mix their fuel with other things to get larger quantity. maybe thats the problem...

 

I also having issue same as your 2006 Sporster. Were you able to figure out why the check engine keeps on coming back even you try to clear it?
I would like to find out before I go to mechanic.

 

I have same issue with my 2006 Sporster with P0602 code. The mechanic asking for $125.00 per hour to do diagnostic.
Is there a way to clear this and not to come back? I keep on clearing it but it keeps on coming back.