good morning, I have a power commander 5 and had a nice map then changed my counter sprocket to a 18 from stock.
the map i had was spot on except for it called for a +2 rear sprocket which i did not have , but it worked and ran fine.
BUT when i slapped the 18 on I got a amount of surging is the best word for it at lower speeds/ rpms but fine higher up.
Now my question.
Does the computer take the sprockets into play like that? Or do I have bad gas?
I say this because I slapped a better map to it and i still have the same issue but maybe not as bad.
This is still the same tank of gas and i have not tried to reinstall the better map again (maybe it did not take)
Peace and Love Ron