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#1
10-31-2004, 12:30 PM
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d15b2 dpfi to JDM d15b2 VTEC mpfi on an 88 crx...PLEEEASE HELP!!!
ok i purchased a jdm d15b2 mpfi vtec motor from a 92-95 civic and i am swaping it on my 88 crx d15b2 DPFI and need to change all of the wiring...
im not 100% sure on what i need to do this, im assuiming i need a 92-95 engine wiring harness, 92-95 undash ecu harness, vtec ecu, cluster, downpipe, fuel pump, injector resistor box.. is this right?? i would really appreciate your help.. my car is on jack stands and both motors are on the ground right now  can't wait to get it running agian!
Last edited by jhmcrx; 10-31-2004 at 03:17 PM. 
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#2
10-31-2004, 04:41 PM
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jdm d15b2 vtec?? never heard of it. umm, u may just need the ecu for that motor and then wire it up for mpfi, yes u need a resistor box, dont think u need a cluster, fuel pump or down pipe tho
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94 s-10 bagged, body dropped, 22's, suicide coupe doors, fully shaved, and soon a small block 350 2011 Silverado... Stock Daily driver 
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#4
10-31-2004, 05:00 PM
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harness should fit but dont quote me on it
__________________
94 s-10 bagged, body dropped, 22's, suicide coupe doors, fully shaved, and soon a small block 350 2011 Silverado... Stock Daily driver
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#5
10-31-2004, 08:06 PM
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Re: D15B2 DPFI to JDM D15B2 VTEC MPFI on an 88 crx...i need some help!
Good choice in motors first of all. thats what I'm putting in my rex this spring. As for ecu, you can use the d16z6 ecu as well as the d15b2 vtec. As for wiring you can use your stock harness, but you need an obd0 to obd1 adapter harness. You can look on ebay or do an internet search. shouldn't run you more than 120 though. use your own downpipe and fuel pump. Good luck... how about posting us some pics of your progress as you go.
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#6
10-31-2004, 10:25 PM
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Re: D15B2 DPFI to JDM D15B2 VTEC MPFI on an 88 crx...i need some help!
ok. there is no such motor. if ur talking about the jdm d15b than yes. not b2. thats the usdm motor. jdm motors dont have the numbers at the end of them. atleast honda. im doing this swap next week.ok if you goin to convert to obd1 than u can use the p28 and the dizzy, enjecters. first thing is too do the dpfi to mpfi changeover. you need to run a z6 resistor box. make sure u get the female and male connecters.you need to do the obd1 wiring harrness, good luck if you dont know what ur doing. im not goin to do the obd1 converssion. its a headache. im running a pm6 ecu dizzy resistor box and injecters. im using the apexi vafc to controll the vtec engagement. i hope u know what ur doing.i think the 4thgencivic site has the instructions for the mpfi conversion.can u explain ur b2 motor.is it a mini me
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#7
10-31-2004, 11:49 PM
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Re: D15B2 DPFI to JDM D15B2 VTEC MPFI on an 88 crx...i need some help!
yah i made a mistake its a d15b, and THANK YOU for some useful info.(i hope i know what im doing too
) ahh but i have time and ill learn from my mistakes i guess.
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  1988 CRX DX MODS: Garrett T28 turbo 450cc DSM injectors TurboEdit STD manifold W/adaptor plate dsm bov stealthemodeperformance.com oil line's Tsudo cat back basic hi flow cat front tower bar, rear tie bar short throw shifter and other small stuff
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