i jus got a b20 for my crx. i blew my last motor (b16) and i have a PW0 ecu from the last motor...would this ecu work good on the motor or should i jus get a pr4 from a ls?

 

I'd settle for the LS but that's not gonna cut it any hell with the fuel...

 

i'd say either use your pw0 ecu, chipped and tunned, or get a obd1 conversion and an obd1 gsr ecu, then again chip, and tune it. if untunned, either ecu is going to make your engine run lean. a good site to get started with ecu tunning/chipping is http://www.pgmfi.org/
using a pr4 ecu will not let vtec engage unless you have some crappy switch or something like that.

 

it will run with it but i wouldint beat on it like that... i would get it chiped and have someone burn you a chip with different fuel maps in it

 

How did you blow your b16?