I have a 96 civic manual hatch that i am coverting to a hx setup. when i bought it is was bone stock with manual everything and a very solid run ning non vtec 1.6 motor in the dx trim level. I have since put hx rims on it with ebach sportline springs, s.t. sway bars, koni yellow shocks and a rear disk brake conversion with upgraded brake lines pads and fluid. I put in a k&n filter and the exhaust from a 96-00 ex (d16y8) and did a 80% front grill block leaving a hole for the radiator to get air. i run 5-20 synthetic (whatever is on sale) and as i have worked on the car gas milage has moved up from 28-30 to 33-35 with the latest tank (summer fuel) yielding 37.8 mixed driving. the car also performns much more strongly and i added several rolls of peel and seal to the interior or the car to quiet things down a bit.
I have hx:
5 wire ecu
My questions are:
1. Do i need the hx wiring harness? or can i run some wires wires witrout it getting too crazy?
2. does anyone have a good source for a new 5 wire o2? I figure since that is such a major determinant of the sucess of my procject I will spring for a new one.
3. any issues i should be aware of with my little plan?
I am also going to make colorplast panels for the underbelly of the car and at least put the oem si airdam on the front. I am leaving the mirrors and wipers alone and will run performance orientred tires on the car at 40 psi(ish) and expect to get to around 45 mixed. we shall see.