So here is the senerio. i have a civic si with a obd2 harness and a obd1 dizzy. i turn the key, fuel pump primes and the car starts up with no problems and with idle with no issues.. UNTIL i apply the foot break and the cel will turn on, it wont change how the car runs but if i keep my foot on the break it will start to run shakie.
anyone have any opinios on what would cause that. thanks

 

Code 73 is an OBD2 ECU-specific code but you have an OBD1 ECU. Post a video of the CEL blinking the code.

 

i cant upload a video. it does 7 long flashes than immediatly 3 quick ones

 

Are you sure you're running an OBD1 ECU? Post a pic of the ECU.

 

Its a chipped p28. Im using a jumper harness from the harness to the ecu

 

Post a video (CEL ) and pictures (ECU).

 

Ill have to post them late tonight after work. And i just realized my dizzy is a obd2 single cam on the car