The idle problem is a hit and miss issue. What i mean by that is, a lot of customers are not having any idle problems while some are, so it seems to be car/setup specific. So to answer the question, yes the idle issue can be fixed, but it must be fixed on an individual basis, meaning that you need to install and run it first before we can determine how, if even needed, to adjust the idle settings. On the 440c note our unit is capable of running them and infact one of the guys on here, real name orlando from tampa no less, was using it to run those injectors. A map will be a breeze to make if we could get a car to set it up on...on his setup i believe we cut all the values by 50%. Pricing is $310 plus shipping, either 10( most east coast cities) or 11(rural addresses and western zones) bucks via UPS or DHL w/ insurance.