Hello, HT. I previously had a D16Y8 in my 1999 EK (OBD2), and recently swapped in an OBD1 B18C1 (1994 GSR). I had someone do the swap for me. I'm not sure if how OBD conversions work, but it seems like I have 2 ecus sitting in the passenger side of my car. It's kind of difficult to tuck them away somehow since there isn't a lot of room to put away both of these ecus. I noticed that one of the ECUs (the smaller one) has absolutely nothing connected to it but it's being held on by a red clip. Can I just remove that clip and get rid of the smaller ecu? Nooby question, I know.

 

yes you can get rid of the unplugged ecu. not sure why they did that.

 

The clip is on there pretty good. I think they didn't want to crack it off I guess lol.

 

Just guessing you're from CA? If so you won't pass emissions with the one that's plugged in. What is the code on the other smaller ECU?

Check here and post it

http://www.hondata.com/techecuid.html

 

Good catch...i was baffled as to why there would be two ECUs sitting there, but emissions requirements will do it

 

It's a P2E (96+ OBD-2 Civic DX Coupe)
Edit: Yes, I'm from Cali haha

 

You won't pass with the OBD1 ECU. The other ECU is your stock ECU and can't be used with your current engine. To have a chance of passing you'll need a 96-99 P75 with a jumper harness. However having an older engine in a newer car doesn't fare to well for you either.

 

So can I just remove the ECU for now and put it back when the time comes for a smog check?

 

I'm also missing the 02 sensor lol My car wouldn't pass smog anyways with the older engine and P2E ECU so I had to take it to LA and get the illegal smog. I'm probably going to have to do the same thing again.

 

^^I've said it a million times...i'm so glad i dont have to deal with that nanny state bullsh!t. I haven't owned a car that would pass Cali smog yet...

 

It's a hassle getting cars to pass smog. Saddest part is that smog shop workers aren't required to tell you what's wrong with your car if it fails a smog check