Hey guys I have an all stock 99 civic 2dr 5spd 1.6 vtec ex. I am getting a p0505 which comes back to the idle air control valave. Well I replaced that and reset the computer and it kicks the check engine light back and still does the same thing. The car at 1700 rpms misses real bad but only at 1700rpms. When you clear the code and take off the car takes off fine but if the check engine lights on when taking off it misses real bad also.The car has new plugs,wires,distirbutor,timing belt/water pump,idle air control valve,gutted convertor also. Has anyone else seen this or know what I can do? This is driving me nuts. Thanks so much in advance!!!

 

Anyone?? This is driving me nuts and I can't find anything in my haynes manual on this problem!!