aoa members . honda city 1999 efi.i m experiencing unburned fuel smell in garage when idles the car ...smell is sometime very dark and smelling the silencer let the tears shed from eyes... someone also fiddled with trim pot ..it was first at 2.33v(x431 scanning device) mechanic adjusted it to 1.8v then sencond mechanic adjusted it to 2.5 ... i can feel the diference of 19,20 after 2.5v but not more than 20 %... i cant understand what is the problem ... plugs are new and i insulate the cable wires with double taping (black tennis ball tape and carton packing tape).
kindly give some right direction