Have a 99 integra that I did a b20 swap, need to know the difference between obd2a and obd2b. Have the stock b18 ecu and looking to get correct one for engine. Non vtec

 

what is the full engine code of the b20? theres a LOT of different versions of b20's out there. and is the b20 completely stock top to bottom?

 

It is a b20b out of 99 crv, I put the stock b18b cams in it and we put the crank sensor and oil pump to convert it to obd2. It also has the b18 intake and a 65mm throttle body.

 

99 is obd2a for both the integra and the crv.
using the stock crv ecu may or may not work all that well because you changed the cams and intake manifold, and using a much larger TB. your best bet would actually to convert to obd1 and have it tuned.

 

Thanks, I was just looking into doing that.

 

+1 on tuned obd1