d15b ef obd1 swap

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11-09-2005, 12:57 PM

yllwciv5

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Join Date: Nov 2005

Posts: 254

d15b ef obd1 swap

hey everyone,
im new here.....i finally registered......but im very very confused about the swap i wanna do......i just recently bought a jdm d15b sohc vtec......and i wanna put it in my 90 dx hatch....now i got this car with nothing in it.......i got the windshield put in and the interior.......i put a crx dash into it cause i had a spare crx that i didnt want......it was an hf dash....now as for the engine how the hell do i wire it

?i've read so many damn articles and there all different......i will be using a p28 ecu.....d15b sohc vtec obd1.....and i still need to get the harness....i will be using the ex/si vtec harness....im sorry but i know someone out there has probably already written something up on this but im soooo confused so please help me...... :1

11-09-2005, 01:48 PM

Guy-Fast

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Join Date: Dec 2002

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Re: d15b ef obd1 swap

well your suppose to use the cars original wiring convert to mpfi then get a adapter harness and then your obd1 mpfi. Not that hard but if you have a bare shell with no wiwirng enjoy your headache or find a donor car and take all the wiring only way

11-09-2005, 10:59 PM

yllwciv5

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Join Date: Nov 2005

Posts: 254

Re: d15b ef obd1 swap

so should i get the crx hf harness

since i have a crx dash in it......or maybe an 88-91 si harness?
im still confused.....can i still use the p28 ecu??
i just dont know exactly what i need

11-09-2005, 11:27 PM

Guy-Fast

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Join Date: Dec 2002

Posts: 0

Re: d15b ef obd1 swap

you need a complete harness I mean everything. If you choose a dx harness 88-91 dpfi you must convert that harness to mpfi. If you use a si/hf you just need the adpter harness. Its not that hard just you choose a chassi with no wiring is usually a headache and people give up on them due to situations like this

11-10-2005, 11:17 AM

yllwciv5

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Join Date: Nov 2005

Posts: 254

Re: d15b ef obd1 swap

ok well i will get the hf/si harness.....but how exactly does the adapter harness work...
and i can still use the p28

.....and the original intake off of the d15b

damnit!!!d series is crack!!!!!but one thing is for sure....im not giving up on this project no way no how!!!!i dont care if i have a migraine the whole time.....but i just need some help with it.....but i will be looking to get an hf/si harness!!!