Ok i got a 91 crx si with 96 ls motor went obd0 dizzy, injectors and pr4 i have spark and fuel. well fuel after i jump the main relay, sodering tomorrow. checked all the grounds they are good the only thing not hooked up is the temp sensor and o2 but they shouldnt keep it from starting. i would think. ive exhausted my knowledge so im turning here. anything else i should check???

 

i would get the temp sensor hooked up and then check timing

 

try ur vaccum and the idle adjustment screw

 

Is it turning over or not?

 

yeah its tuning over and has good spark. i got to thinking im gonna check the compression and see what that yeilds. no compression no start. i dont think its an idle screw issue it should start with the throttle open. its not even tring to fire off its just turning over.......

 

Ok problem solved compression test yeilded every low numbers across the board like 45psi checked the cam timimg and intake cam was like 4 teeth off. i never had the belt off or even the cover for that matter. set to correct timing and fired right up