so here is my question. my father has a 97 civic dx sohc well the engine is bad. he has an ex engine but that one has variable valve timing. can you run the engine in the dx without hooking up vvt. will it run right. im not interested in the tuning aspect just normal everyday driving. thanks

 

vvt is yoda tech
vtec is honda.

and yes...ex eng can go in a dx civic.
just get the ecu

 

ok sorry not farmiliar with all this. so you cant just put it in and run it without it

 

He can keep the DX ECU. Just will never have VTEC.

 

and it will run fine