I have searched and searched and I'm not having much luck. I am about to swap a Sohc zc (from hmotors) into my 91si. What ecu does the sohc zc use? I use to have a 90si with a sohc ZC swap (way back in the day) that someone else had done. I remember it reving deep into the redline which makes me think the Sohc ZC uses a different ECU. Thanks for any info....

 

The sohc zc ecu and d16a6 ecu (pm6) are 99.9% identical. Just use the pm6 ecu and call it a day.

 

I guess my old one was chipped. Thanks!

 

pm6