alrighty, after about 3 days of pure hell, I completed my swap. the car is a '97 CX hatch, motor is a '00 LS. I used the cx wiring harness, and did the IAC trick at the ecu. i'm still running the ecu out of the d16. everything seems to work fine, the car pulls like a mother. problem is... speedo doesn't work, and, if i barely put my foot on the gas, it acts like i'm on a 2step. I can rev past that spot and everything is gravy. its just at low rpm's it bounces around, kind of annoying. would it be remidied by putting a ecu out of say, a 96-98 LS ecu? I dunno, i'm out of ideas.

 

ya im pretty sure you need that ecu that should solve your problems

 

wow why would you keep an ecu from a d series in your car no offense but its jus stupidity thats your problem

 

You def need the LS ecu.

 

Umm, your current ECU is for a 1.5L SOHC 8-valve engine, and now you have a 1.8L DOHC 16-valve engine. It's just a tad bit obvious that it's the problem. Get the correct ECU.