Hondata

I have a 2007 Honda Civic SI I have the jrsc been driving it for about a month i have put on it about 1500 miles in it, the car drives great, but when I step on it black smoke comes out from the exhaust. Im sure its running rich, could this be a problem with the reflash?

Does it drive properly at part throttle? Have you checked the air fuel ratio or put the car on a dyno to see what the power level is?

yes it drives find... and no i have not put it a dyno jet.