i have a 94 delsol vtec(b16a3 model) my ecu died it is a p28. i was under the impression that they came with p30 ecu's. well i want to put in a p30 ecu. someone told me that i wold have to change some wires because it had a p28 in it. i am wandering if that is true or if its just plug and play

 

Plug and play dude. My eg Si came with a d16z6 engine and p28 ecu. I swapped the engine B16A and P30 ecu. In my case I had to add a single wire for the Knock sensor, because the knock sensor wire isn't present in the SOHC wiring harness.