current set up is in a 91 civic hatch...d16z6 motor, ob0-obd1 jumper harness, p28 ecu.....92-95 si distributor......im not sure about the injectors...and im running a resistor box and a 4 wire o2 sensor....

problem is wen the vtec engages it pulls fine unless im at WOT (wide open throtlle) or even somtimes wen i hold a gear about halfway to wot it will start to spudder....usually starts to bog/sputter anywhere between 6000-7000 rpms....ocassionally at 5500 rpms...any body know what this could be? i know it could be alot of things but just seeing if anybody could help me out or if anybody has had a similar problem? im thinking it has something to do with fuel or ignition cuz my timing is fine, also oil level is good...any info is greatly appreciated....THANKS...

[danio] honolulu, HI