Hello, My car is 1994 eg9 swaped B18C engine, run by OBD1 harness with OBD2A ECU pulg converted.

the car is run with power fc with no issue until I replaced the chipped P73 for it. the car has engine light on after 5mins run on road, then I check the code is 20 and 23. then I replaced the knock sensor for the code 23. but light have not gone. What should I do? I did some of research, some ppl say need to bypass the knock sensor for the engine swaped.
Anybody know what issue cause the code 23 in my case? Thanks
Its can driving normal when the light is on.


I am pretty sure all sensors are work and it run with Power Fc without any fault code.

 

So according to the list I have
20 is for the electronic load detector
23 is for the Knock sensor

Depending on the Chip you have you can have the knock sensor disabled, but that really isn't fixing the issue. Have your charging system tested, to make sure the ELD is working.