uh u wont nec get 200HP from the JDM ecu, the jdm h22 has 10.6-1 CR while all USDM h22a1/4 have 10.0-1
although with an adapter harness you can run the p13 on your h22a4, you may also need to use the OBD1 P13 P+H injector system to run correctly not sure on that one

but to answer your original question...Yes the JDM p13 will work fine with an OBD1 H22a1 USDM motor.

~kris