what is the difference between the two ecu's? pr3 and pwo?

 

the pr3 is from the integra and the pwo is from the civic/crx

 

ok is there any difference as to how the run the vehicle?

 

no

 

are the maps identical? seems odd that they would make 2 identical ecus with different numbers

 

I can tell you that stock for stock they seem the same performance wise. The pr3 has the advantage of being much easier to chip though with a number more options.

I have the best and most rare pr3 myself, a 1992 model from an integra in a obdI version

 

I have seen a thread somehwere on a board stating that the PW0 is a better map, little more spark and fuel. Can't remember it might have been HT or PGMFI I dunno.