hey i wonder is the 1990 si and dx have the same wire hardness for the engine ?

 

Dx=DUAL POINT INJECTION.... Si=MULTI PORT INJECTION....different wiring harness

 

this guy says it the same since he works for honda shop ....

 

that guy is wrong, the dual point and multiport are differant, totally differant fuel system there pal

 

so waht do i gotta do to get my si motor into a dx civic ? do i gotta change the wire system or the ecu or what ?

 

Me and WYT R1CE swapped a B17 (converted to OBD0) from his 91 Si Hatch into his 89 DX Hatch. Because of the differentces in the harnesses, we had to swap both of the harnesses. You wouldn't have to swap the interior, but the interior one in there was just shit. So yea, just get a wiring harness from an Si and the Si ECU and you should be ok.

 

no you just to add a few wires. abacus does it all the time. I think its somewhere between 5-8 wires needed more..

 

New harness is much easier and most likely less costly since you wouldn't have to pay someone to do anything.