i have 97 honda accord with the f22b2 obd2 and i have the 95 h22a obd1 will that engine wireharness plug in to my stock firewall harness(the one that goes from the firewall to the ecu) i have the jumper harness that changes my obd2 ecu harness to obd1

 

No it will not. You will have to put your F22b2 harness on the H22.

 

is there a diagram showing how to do that kuz i have no idea

 

Its pretty straight forward, just label the connectors as you take it off the f22 and match it up on the h22. Some of the connectors are different so you will have to cut the connector off the h22 harness and solder it on the f22 one.