240sx Powering Up ECU without the car has been one of the most common question from people looking to get there Nissan 240sx KA or SR chipped and tuned. If you can’t or don’t know how to tune your ecu but want to save a lot of money by chipping it yourself, then we have a few videos that can help. Sending your ECU our get a daughterboard installed usually costs $200-$400 but if you buy the materials yourself you can do it for less then $100. Depending on the feedback this video gets, I will make another explaining what is needed to burn a bin file or tune to your eprom chips. To buy the Nissan consult plug needed to scan or connect your ecu to your laptop or PC can be purchased from Below.