hi everyone this my first post i know throw **** at the newb but i just bought a b16a2 and im putting it in my cx. From my under standing, that harness is prewired for vtec from what i found on other web sites is this correct?

 

yeah 92 should be.

 

thanks, does anyone else have anything to say?

 

From my understanding all 92's are prewired, however you cannot just plug everything up and call it a day. You have to convert from a Single wire o2 to a 4 wire o2, if im not mistaken you must run the vtec wires from the motor to one end of the shock tower harness.

 

yep cx has to to converted.

 

Also the harness on the B16a2 dosen't plug and play. you'll need to reuse your d series harness and make a few miracle happen. If you dont want to go that route, get an obd2 gsr harness. Also both motor mount on the driver side and rear motor mount bracket has to be from a GSR.

 

yeah but the motor is a ob1its from a jdm eg6 92-95 miracle no pain in the a$$ yes and they sent me the motor mounts with engine so your making it sound a alot harder then it is. if the motor was obd2 or from a usdm si this might be a hard swap

 

Oh, I'm assuming its an obd2 since you said b16a2 without giving any other info. I'm not trying to make anything harder, just replying from your info.

 

im running a 00si motor in a 93 hatch with this method, started up the first try with no check engine lights on.

if the motor is obd2 use a engine harness from an obd2 gsr/type r and EVERYTHING will plug up. [you can not use one from an Obd2 civic since the harness is one piece.]you will have to run one wire for your tach and that is all.
you will not use all of the sensors plugs in the harness since your obd1 ecu will not look for them (2nd o2, knock sensor etc..)

if the motor is obd1 get a obd1 gsr/si harness and plug it up and you will be golden.

good luck

 

yeah its obd1 but in the si dont u still have 2 wire a knock sensor i would imagine the gsr harness might work

 

Your chassis harness has all the wires for the 4-wire O2 sensor already. If you get a USDM OBD1 "Del Sol Vtec" or "Integra GSR" engine harness, your swap will be plug-n-play. If you re-use your CX engine harness, your gonna have to build yourself a new engine harness with both the JDM B16 harness, and your CX harness (you'll need a helms wiring diagram).

What your chassis harness doesn't have, is a wire for the knock sensor. This must be added if your going to run the B16 OBD1 computer (or you'll throw a code). It is recomended that you use "sheilded wire" for this, since electromagnetic interference from your ignition system can cause the ECU to read "knock" when, in fact, there is none. This will cause the ECU to retard your ignition timing until the next time you fill up your gas tank (it thinks it's gas quality) which results in a loss of power.

Sheilded wire is a normal wire, wraped on the outside with another layer of wire. This outter layer will have a tail coming off the end that must be properly grounded to be effective. It's actually pretty easy to do if you have the wiring diagrams. You will be able to see that the grounding tail just solders directly to another wire inside the harness (ECU ground I believe)...

 

WoW that was the most informative and intellegent post. congrats

 

wow im getting really confused

 

so which year gsr harness do i get cuz the del sol harness will most likely be imposible to find

 

p28 ecu don't use knock sensors.
it depends on what you want to do with your motor in the long run if u want to wire it up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hatchish &raquo;</TD></TR><TR><TD CLASS="quote">so which year gsr harness do i get cuz the del sol harness will most likely be imposible to find</TD></TR></TABLE>

OBD1 (94-95 GSR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Harassing Herbs &raquo;</TD></TR><TR><TD CLASS="quote">p28 ecu don't use knock sensors.
it depends on what you want to do with your motor in the long run if u want to wire it up.</TD></TR></TABLE>

I asumed he was going to use the JDM B16 ECU (P30) that came from the EG6. He never said anything about a P28 (USDM 92-95 Civic Si, and Del Sol Si). I would rather use the JDM ECU (unless your in Cali.) anyways, rather than reprograming a P28 for 170hp. It's just easier...

 

if you use the cx harness you will need to convert the 1 wire o2 to 4 wire and add knock sensor wire

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hatchi &raquo;</TD></TR><TR><TD CLASS="quote">if you use the cx *engine* harness you will need to convert the 1 wire o2 to 4 wire and add knock sensor wire</TD></TR></TABLE>

 

Hatchis, you came here for questions, and we give you answers. dont bang on peoples answers...I guess everyone is confusing you right. next time just be patient and listen first before flapping your gums. no wonder you dont get it.

 

my 94 I used a 95 ex harness and had to run only vtec wires from ecu to shock tower didn't have to wire the o2 sensor

 

naw este cara i got respect for everyone but u and im great full for everyones advice i was just confused it happens so when its that time of the month dont go taking ur **** out on me

 

My stock '92 D15B7 already has a 4 wire O2 sensor. Is this normal? Will wiring up vtech for my mini-me be really simple? (I do know that all 92 civic CX and DX's ECU is vtech ready). Can someone shed some light on what I will all need to wire up vtech on my DX? Thanks

 

oh yeah could i use the si harness or the ex harness instead of the gsr one cuz there expensive and rare

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bond &raquo;</TD></TR><TR><TD CLASS="quote">My stock '92 D15B7 already has a 4 wire O2 sensor. Is this normal? Will wiring up vtech for my mini-me be really simple? (I do know that all 92 civic CX and DX's ECU is vtech ready). Can someone shed some light on what I will all need to wire up vtech on my DX? Thanks </TD></TR></TABLE>

All DX D15B7's use a 4 wire o2. Only the CX (D15B8) uses a 1 wire, and only the VX uses the 5 wire (or is it seven?).

As for your ECU being Vtec ready, it ain't. Your chassis is Vtec ready, but you will still need a vtec ECU, and you will still need to add all the vtec wires to your engine harness. Mini Me doesn't use a knock sensor, so you don't have to worry about that one.