b16a swap questions
10-29-2003, 07:25 PM
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b16a swap questions
i put a b16a in my 88 crx si successfully. however i wrecked the car. my motor is still good to go tho. so i bought a 90 crx dx/std with automatic transmission. so my question is. what is the best way for me to approach the wiring when i put my b16a in the dpfi crx? i have the harness from the 88 si i can use if it will make it easier. so would i just use the 88 si harness on the b16a like i did before but just make the changes at the ecu end of the dx harness? thats what im thinking i have to do. i think the harness end changes are here: http://b16a.honda-perf.org
im just trying to get this stuff str8. please hook me up with any details you can, thanks.
im just trying to get this stuff str8. please hook me up with any details you can, thanks.
10-30-2003, 03:58 AM
#2
Re: b16a swap questions (b16acrxer)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16acrxer »</TD></TR><TR><TD CLASS="quote">what is the best way for me to approach the wiring when i put my b16a in the dpfi crx? i have the harness from the 88 si i can use if it will make it easier. so would i just use the 88 si harness on the b16a like i did before but just make the changes at the ecu end of the dx harness? thats what im thinking i have to do.</TD></TR></TABLE>
You can't use an MPFI engine harness in a DPFI chassis. The shock tower plugs are different and it will not plug in without using the entire MPFI chassis harness or completely rewiring the plugs. Even if you rewire the plugs there is still wiring to do on the chassis side as well, so it's not worth all the trouble. You will need to adapt the DPFI harness onto the motor and then rewire to MPFI which isn't very hard. Then of course you will need to add the necessary wiring for the VTEC, knock, 2nd O2 etc.
You can't use an MPFI engine harness in a DPFI chassis. The shock tower plugs are different and it will not plug in without using the entire MPFI chassis harness or completely rewiring the plugs. Even if you rewire the plugs there is still wiring to do on the chassis side as well, so it's not worth all the trouble. You will need to adapt the DPFI harness onto the motor and then rewire to MPFI which isn't very hard. Then of course you will need to add the necessary wiring for the VTEC, knock, 2nd O2 etc.
10-30-2003, 04:14 AM
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Re: b16a swap questions (VTECVillain)
ok then cool, so now im pointed in the right direction? what exactly do i need to do to the dx engine harness to convert it to mpfi? or where do i find out how??
thanks
ronnie
thanks
ronnie
10-30-2003, 04:24 AM
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10-30-2003, 06:06 AM
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All you hav eto do is run the red blue yellow and brown wires from the injectors to the ECU, also run the other wire on each injector to the resistor box. Then run 2nd O2 sensor, knock sensor and v tec wire to ECU you can get the wire diagram to hook up at ECU from Hybridgarage.com
10-30-2003, 09:57 AM
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Re: (90crxb16a)
ok, kenjis guide seems pretty straight forward, only its for dx to zc whereas im doing dx to B16a. im going to assume that its basically the same thing. one question i do have is this....do i need to reverse the tps wires for b16a? i know you have to reverse them on the zc.
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