Rep Power: 0

Alright well got the new motor in and everything went perfect slid right in not one problem everything plugged up. V-tec kicks in like its supposed to motor runs great. All the old parts are on from my v-tec besides the intake manifold. (I bought a non v-tec motor and swapped the head from my old v-tec that i had gone over cleaned and had my cousin who is a honda specialist checked everything saying its okay to be used) i used new gaskets and everything. All fluids are topped off. No air in the coolant. The iac is working perfect. Replaced the map sensor the fuel injectors the ground wire to the block coolant temp sensor the fuel rail fuel lines power steering pressure sensor oil pressure sensor v-tec sensor, no vacuum leaks head gaskets good throttle body is clean(cleaned with carb clean tooth brush never removed anything on the throttle body besides the iac checked recleaned and new gasket and put back in.

Anyways my idle is very random. It throws a p0505 p1505(intake something, perty much telling me its got bad idle obviouse) p1298(eld i know its the alternator but until i get more money i cant replace it). Now its codes for my 1, 2, & 3 cylinders are misfiring and it runs amazing. But rough when it idles. When i go down the road and pull it outta gear and put it in neutral its runs at 2k rpms smoothly, then when you come to a stop it will idle at 900 rpms but rough. Its sucking fuel like hell to like from 40mpg the 22mpg. Im lost i replaced everything checked everything im getting pissed and about to sit it in the field and blast the f*ck out of it.

 
Rep Power: 0

Guess no one knows. Yall as lost as i am.

 
Rep Power: 195

What did you cousin tell you was wrong? I assumed you asked him first since he is a Honda Specialist. Did you check the FITV, dizzy, coil, plug wires, PCV?