I just swapped my D15D6 out of my 90 CRX for a D16Z6 out of a 94 Del Sol. I got the OBD1 adapter harness, got it running fine and drove it home. After I start it once and shut it off, it WILL NOT start again and throws code 15 (ignition output) till I reset the ECU. I reset the ECU and it will start and run fine, I shut it off and it wont start again. The P28 was an automatic and I converted it to a manual properly from what I've seen. I've tried removing RP17 and RP18 with a jumper on RP18, and I've also tried RP17 removed with the resistor on RP18. Any way I do it, it still does the same thing. I tried an ECU somebody else had that he had modified taking just RP17 out and the car ran fine and started every time. Anybody know where my issue is?

*edit* My O2 sensor was wired incorrectly for about 3-5 miles of driving before this problem, could my ECU have been damaged?

 

Do your 4-ways work? It could be that when you had the O2 sensor wired wrong, you blew the backup power fuse to the ECU, and when you shut it down, the ECU has no power. Check the fuses.

 

The fuses are good. I have another ECU lined up to be recieved in the morning, but its automatic. I dont want to mod it and mess that one up.