Ok swap an ls motor from one crx to another including the harness. The car will start with starting fluid but i can not gt the fuel pump or injector to come on. I am pretty sure the relay is good and it clicks. I tried remotly jmping all the wires to find my problem but no luck help please

 

are you sure the fuel pump is good in the new crx? What kind of crx's are we dealing with. HF SI??

 

and if that dont work check the ecu connections, something might have got fucked up when it was taken out of the othe crx

 

the fuel pump does work and it is an si but I took the harness from the other one. I will check the ecu connections

 

I would check fuel pressure also. Even though its kicking on it may not be suppling enough fuel pressure.

 

the pump works but only if i jump it it won't come on with ignition so there isn't any fuel pressure

 

also there was a big plug on the driver side strut tower in the first crx. The si shelll did not have it so i switched the whole harness did i need to do this

 

you need to use the wiring harness from the car you swapped the motor into. Harness are not interchangable from one model to the next. If you had a DX or something and swapped it into an SI it will not work.

 

thx slow ls i think you have givin me the most helpful advise since i started this. I was starting to notice little things like that. But the si harness will work?

 

yes, use the SI harness. other than a few backwards pieces it will work. you can't use the LS harness in your CRX (coming from a guy that has swapped an LS into his crx)