Hey guys sorry but I ran out of ideas we trying to tune my eg coupe built single cam head with stock bottom end on boost on p28 chipped now my issue is im trying to street tune but every time I drive the car the demon gets disconnected have tried in another car and the software works perfectly, already added grounds to engine bay thinking was the harness any other idea I'll appreaciate or if someone went to this and fixed share it thank you

 

no one?