savestheday13x2

i have a 97 civic DX coupe. I am swapping a USDM b16a2 into that S.O.B and i had some questions and im not sure what my best option is. I was told to get a OBD2A to OBD2B jumper harness and run the b16a ECU and ive been told to get a OBD2 to OBD1 jumper harness and run a JDM PR3 ECU. Im not really sure what my best bet is here so if anyone has some advice let me know. Does it matter if i run a b18c1 wiring harness or a b16a wiring harness?

pornstarSR

you can run either the b18 or the b16 wire harness both will work...

as far as the ecu.... both will work also, its kind of a which one do you want to go with issue..

which is easier to get, thats what you should ask.... go with the easiest one they both will work

savestheday13x2

Hey thanks man...ill see what i come up with

2lua

you can't use the gsr(b18c1) harness cause it 2 pieces, and you car is using 1 piece harness you have to use the b16 obd2 harness. about the ecu question you should use the 99 si ecu. so you don't have to spend money on the harness conversion.

pornstarSR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2lua &raquo;</TD></TR><TR><TD CLASS="quote">you can't use the gsr(b18c1) harness cause it 2 pieces, and you car is using 1 piece harness you have to use the b16 obd2 harness. about the ecu question you should use the 99 si ecu. so you don't have to spend money on the harness conversion. </TD></TR></TABLE>

oops


one peice it is


Modified by pornstarSR at 8:42 AM 2/1/2005

savestheday13x2

if i use a b16 wiring harness and run the b16 ecu ill still have to get a ob2a to obd2b jumper harness right??? the only reason i was going to use an obd1 pr3 ecu was because i already have a obd2 to obd1 jumper harness and thought id save some money that way

pornstarSR

well it depends on what b16 ecu and what b16 wire harness you get

the 99-2000 civic SI with the b16 is obd2b so if you ran that wire harness or that ecu then you would have to make sure you make accomidations for that.

the delsol 92-95(not sure of year range) has a b16, you can use the ecu but have to have the jumper

so cliff notes
99-2000 civic SI b16 ecu, needs either 99-2000 b16 wireharness, or jumper harness(or you cut and solder yourself, but i dont think thats what we are talking about)

it can go both ways

they have obd2b - obd1 jumpers


Modified by pornstarSR at 8:41 AM 2/1/2005


Modified by pornstarSR at 8:42 AM 2/1/2005

egsleepercivic

imo, I would run a p30 with a obd2a&gt;obd1 jumper if you don't have emissions testing, if you do have testing you will need to go with a 99-00 si ecu, for your wiring harness use the dx harness and add vtec and knock sensor wires, hope this helps

93_cxEG

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egsleepercivic &raquo;</TD></TR><TR><TD CLASS="quote">imo, I would run a p30 with a obd2a&gt;obd1 jumper if you don't have emissions testing, if you do have testing you will need to go with a 99-00 si ecu, for your wiring harness use the dx harness and add vtec and knock sensor wires, hope this helps</TD></TR></TABLE>

i agreed with this dude and for show he is on the right track so don't make things complicated as it as...and the other dude don't know what they are talking about...i bet they had never seen or done swap like that...

Slopoke

Wow, there is alot of misinformation in this thread.

You cannot use the integra harness in your civic. It is a 2 piece harness and your civic has a one piece.
You cannot use the '99-00 si harness in your '97. All the pins on the ecu clip coming from the interior harness are in the wrong location.

My advice:
Use your stock civic harness, put it on the b16. Add wires for vtec solenoid and vtec oil pressure sensor.
Buy a chipped obd1 p28 ecu.
Use the obd2-obd1 jumper harness you already have.

Slopoke

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pornstarSR &raquo;</TD></TR><TR><TD CLASS="quote">

you can use a 2 peice harness....

</TD></TR></TABLE>

No you cannot.
The 2 piece harness doesnt even have ecu plugs on it. So how exaclty would you use it?
Pull out the dash and replace the whole main harness with the integra harness? I dont think so.

savestheday13x2

i dont understand why the pins on the ecu clip coming from the interior harness are in the wrong location wouldnt they work if i used the jumper cuz doesnt the dash harness plug into the jumper harnes which them the jumper plugs into the ecu?. I was just going to run the b16 harness and run an obd2- obd1 jumper and run like a pr3 ecu....my brothers cx hatch that is obd1 and has a b16 in it has a gsr wiring harness i mean not comparing the two cuz they're different but just saying

pornstarSR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Slopoke &raquo;</TD></TR><TR><TD CLASS="quote">

No you cannot.
The 2 piece harness doesnt even have ecu plugs on it. So how exaclty would you use it?
Pull out the dash and replace the whole main harness with the integra harness? I dont think so.</TD></TR></TABLE>

oh **** this is true.. i was not thinking of that(was thinking of 92-95)... had lots of **** on my mind

my mistake

as far as not using the SI harness, thats weird cause i have used it works fine with the jumper

pornstarSR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by savestheday13x2 &raquo;</TD></TR><TR><TD CLASS="quote">i dont understand why the pins on the ecu clip coming from the interior harness are in the wrong location wouldnt they work if i used the jumper cuz doesnt the dash harness plug into the jumper harnes which them the jumper plugs into the ecu?. I was just going to run the b16 harness and run an obd2- obd1 jumper and run like a pr3 ecu....my brothers cx hatch that is obd1 and has a b16 in it has a gsr wiring harness i mean not comparing the two cuz they're different but just saying
</TD></TR></TABLE>

92-95 engine harness's are two peice, so this is why your brother is using the gsr harness... becuase it works on the same principle...

the 96-2000 civics are one peice

pornstarSR

i would think of 2 options(now that i have time to think about it real quick)

you can either run the 99-2000 SI wireharness and ecu, or jumper to an obd1 ecu(and i have done it)

or run a 96-2000 EX wireharness, but 96-98 are obd2 and 99-200 are obd2b so make sure you get the jumper for the correct version harness

civicdx1

use ur stock harness run vtec ,vtec pressure,knock sensor,and u have to change the iacv plug,and crank fluctuation plug.and buy convertion harness.im using the si ecu.i got a 98 civic dx with 00 si b16a2 swap.

Slopoke

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pornstarSR &raquo;</TD></TR><TR><TD CLASS="quote">
you can either run the 99-2000 SI wireharness and ecu, or jumper to an obd1 ecu(and i have done it)

</TD></TR></TABLE>

This will not work.
His civic is obd2A, a '99-00 Si is obd2B. Although both cars have a 1 piece harness, all of the pins are in different locations.
I have personally changed connectors and repinned an obd2B harness to fit an obd2A ecu. Every single wire, except one, had to be changed.
So if he gets the obd2B harness and puts it in his car, the third ecu connector(that comes from the obd2A main harness) will have all of the pins in the wrong location.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by savestheday13x2 &raquo;</TD></TR><TR><TD CLASS="quote">i dont understand why the pins on the ecu clip coming from the interior harness are in the wrong location wouldnt they work if i used the jumper cuz doesnt the dash harness plug into the jumper harnes which them the jumper plugs into the ecu?. </TD></TR></TABLE>

Well, remembering that I wrote above, there are two kinds of obd2-obd1 jumper harnesses. Theres obd2A-obd1 and obd2B-obd1. So if you use the SI harness in your car, you'll have to get the obd2B-obd1 jumper harness. And when you plug that third connector in, it will still be wrong, because the jumper harness was designed specifically for the pin location of the obd2B car.

Understand?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by savestheday13x2 &raquo;</TD></TR><TR><TD CLASS="quote">my brothers cx hatch that is obd1 and has a b16 in it has a gsr wiring harness i mean not comparing the two cuz they're different but just saying
</TD></TR></TABLE>

'92-'95 civics have the same 2 piece harness as the '92-up integra. In '96 the civic changed to a 1 piece harness, but the integra kept the 2 peice harness all the way up till it was discontinued..
So you can put any '92-up (doesnt matter if its obd1 or obd2)integra harness into any '92-95 civic. But the cant be used in the '96-up civic.
Does that make sense?