I just scooped a clean EK9 with a b16a2. Car has been running pretty choppy since I picked it up and it burning lots of fuel. Today I looked, and lo and behold, there is a p73 strapped to the kick panel.

Is it safe to be running a USDM B16 with an ITR ECU?

 

Well the ecu will run the B16a but not right. The p73 is tuned for a 1.8L with a high comression ratio. Check for any codes the ecu might be throwing.

 

Just got a stock ECU from a friend, but one of the middle connect doesn't match up. Anyone know where I would find the connector so I can wire it up and try it out?

 

Nah, I got it. Just gotta get the OBDIIa to ODBIIb conversion harness.