i have a obd1 b18a1 in a 90 crx dx the wiring is just fine and was done by rywire they did a great job.
but i am getting cel codes:

3 map sensor
7 tps
12 egr
15 ignition output signal
17 vss
41 primary oxygen sensor heater

i have a brand new oxygen sensor and vss and tps and iacv.
the car runs good but at idle it goes up and down from 1000 rpms to 2000 rpms just like it is the iacv.
the motor came out of a 92 integra that was switched from auto to manual. the integra did not do it before the switch from auto to manual.
if any one has any help for me it would really help thanks

 

It sounds like you might have a bad ground or one not connected with all those codes, did you try resetting it to see if they come back? As far as your jumping idle it could also be you FITV hears a good write up on how to clean it, hope it helps https://honda-tech.com/zerothread?id=1564019