i have a crx 91, b16a1 swap using hasport mounts and wiring harness, ever since i put the motor in the car missfires after 4500 rpms when WOT but wont miss untill 7000 if i feather it. ???????????
did an ungoly large amount of tests and its fine could it be USDM O2 sensors on a JDM motor? is there a difference can i get jdm o2's?
please help me out guys its not anything stupid liek a cap and rotor or clogged injector THX BUDDDDSSSSSSSS

 

Checked timing? Could be o2 sensors that give misreads. Does the ECU throw any codes?

 

no codes no flashes no check engine lights lol just feels like spark wont advance it is in limpmode

 

Do diagnostics on the Sensors, Measure OHM on them. See if you can find what readings you are looking for on the forum. What ECU are you running on the swap?