elf469 Posted November 16, 2007 Share Posted November 16, 2007 So I've decided to drop a JDM B20/B16 head/GSR or ITR tranny in my '89 Si hatch. Will the B18 wiring harness and ECU work? Link to comment Share on other sites More sharing options...
adamEj6 Posted November 17, 2007 Share Posted November 17, 2007 im pretty sure you have to use the cars harness. also wire all the sh!t in yourself. Link to comment Share on other sites More sharing options...
Nancy Posted November 17, 2007 Share Posted November 17, 2007 is it ob1, obd2a, or obd2b? use an itr, gsr, or b16 harness according to whatever obd the head is. you can use a p73(itr), p72(gsr) or b16 ecu. dont forget a conversion harness if youre gonna convert from one obd to a different one. Link to comment Share on other sites More sharing options...
adamEj6 Posted November 18, 2007 Share Posted November 18, 2007 ahhh yes. i forgot you should use the harness of the head. thanks nancy lol. Link to comment Share on other sites More sharing options...
cranny Posted November 19, 2007 Share Posted November 19, 2007 that generation of car , the 88-91 civic/crx , the engine harness is integrated into the car. theres no removing it. so you need to use the wiring in the car and change what is different. OBD0 and OBD1 arent THAT different. get an OBD1 swap. Link to comment Share on other sites More sharing options...
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