2000 engine in a 93 teg issues

ASSISTANCE Stock Engine-Bay Components
1

Hey guys i just got done putting a new engine in my 93 ls. Its out of a 2000 integra. Im using all my obd 1 parts on it.

My problem is it ideling really weird. My only check engine light is 41 for o2 sensor. I also have a question.

Do i need to use the black box on the back of my old block on my new engine.

Any other suggestions will help. Thanks

2

the obd2 blocks have the pcv valve in the valve cover so you don’t need the black box. to install it you’d have to mod some stuff.

what is your idle doing? i’d say start with the basic’s and check for vacuum leaks. clean your IAC valve if you didn’t when you did the swap.