Shane Reil Posted January 30, 2014 Report Share Posted January 30, 2014 Hi I have a sand car with a Honda 3.5 vtech. With g1, main board d42v4 270504. Small upper board subhon6b 150904. The motor runs good except when at a low rpm but higher then a idle, then it wants to die. So my question is can I use the dip switches to correct this problem they are currently set main board 1off,2on,3on,4off. The smaller board 1off,2off,3off,4on. Also can it be connected to a pc, if so what cord do I need and where can I get one. I am located in southern CA. I don't know if the car ever ran right with this set up or not I just bought it. Any help would be great. Thank you Quote Link to comment Share on other sites More sharing options...
Simon Posted January 30, 2014 Report Share Posted January 30, 2014 The sub-board switches will effect the base timing and the ignition 3 output. If the engines runs I would leave these alone. Being a V4 it will be able to be tuned with a laptop. You will need a SerialLink to interface to the PC. Any of the dealers will be able to sort you one. Quote Link to comment Share on other sites More sharing options...
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