Ok, i have a d16a6 in my hatch, and i have the SI ecu plugged in. WOuld it make a difference in performance if i put a ZC ECU on it??? If so what would it do? If not, why not??

 

You will run incredibly rich running the ZC ECU, as the 88-89 Integra ECU makes the D15/D16 run rich, so the ZC will do so even more. The gains are not worth it, so just stick with your current ECU. I would think you could sell the ZC ECU for a good price and get a worthwhile upgrade (that is, if you have the ZC ECU; if not, don't even think about trying to upgrade to it).

 

is running rich good or bad? or ok?

 

pm mark w on here he chips ecus for a decent price, dont run the zc ecu, just pm mark

 

running rich is a waste of gas and the only good thing is that u wont lean seize the motor now lol