Whats this code mean Fuel air metering code p1259? What could cause this code? and what could i do to fix it? I just out a d16y8 in my 97 dx and I used a 96-98 ex harness and 96-98 ex ecu I dont think it was throwing any codes before we put it in my car so why would it now? all the sensors are good and everything is hooked up. Iev tryed everything and still the same code and still the same ol runnin like **** motor .........I need help if anyone thinks they know what it is im up for hearing it!

Thanks, 1clean_ Ej

 

anyone?