I put an s300 in my 96 prelude with an h22a and I’ve been chasing problems ever since. I sensors weren’t reading so I replaced the ecu, all was well. Next day the car hit launch control at ~3500 even while driving and when launch control was off. Then that stopped at I got code 9, replaced the distributor and still code 9. Then code 9 disappeared for a couple weeks and I got code 15 which shut my injectors off immediately. Now code 15 is gone and I have code 9 again. Car idles great and revs clean all the way to redline, but when I roll onto the throttle slow it cuts my fuel for a second around 3000 rpm, rpm drops and then the fuel comes back on. New ecu, distributor, coil, plugs multiple times, fixed the wiring at the 8 pin plug and still not fixed. Does anybody know why my duty cycle and injectors would go to 0% for a second or two like that??