poison

Nope, I haven't re-pinned the O2 sensor. The jumper harness does that.

smokey2.0

thankx for replying, i'm too using a jumper(forgot about it). what would make the engine do this at that particular rpm, it just circles once it hits 1500rpm just like a rev limiter!

poison

what codes are you getting?

smokey2.0

none dude, i have yet to see that CEL light up. i also swapped gauge clusters, to see if the cluster was defective. but i still got no CEL, it feels like i'm driving a car with a lreally light flywheel on first gear!

poison

sounds like the map or tps sensor is screwed or tps is not set right. I'd check the voltage on the tps.

.5 v at idle and 4.5 at wot.

smokey2.0

i'll check that in the morning, thankc for your input poison!

Timmay

ok i still havent put the EX ecu in but running the DX ecu the car feels slower then when we had the DX head on, is this because its a vtec head and vtec is not being activated? right now on 9psi it feels slower than it did on 5. and the valves tick like a ****.
If the T-belt was off 1 tooth would it be enough to still run but kinda crappy?

poison

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by smokey2.0 &raquo;</TD></TR><TR><TD CLASS="quote">i'll check that in the morning, thankc for your input poison!</TD></TR></TABLE>

np

AL ASPIRATED

i switched the the A14 to A12 and unplugged the A13. I also changed the plug on the IACV to a 2 wire

my check engine light is still on and still throwing a code 14.

please help me out

98 civic cx
2000 b20z2
98 ls ecu

cx wire harness

THANKS A lot

if u can please email me

jdmtyperhatch@aol.com

THANKS

Skyllz

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

Yes, if you stick with your DX harness you still need to perform the IACV fix, cuz the OBD1 B16A engine uses a 2-wire type IACV, along with adding the wiring for VTEC & the KS. I like suggesting the use of a 96-98 EX harness, but if the DX harness is all you have to work with then, so be it. BTW, you'll have to stick with an EK engine harness because of its 1-piece design...you won't be able to adapt the 95 Si engine harness in any shape, form, or fashion because of it's a 2-piece design. I suggest sticking with an EK engine harness and using the OBD2b-&gt;OBD1 adapter harness as you orginally planned...that's the easiest way to go about this.

Also, I assume you're going to change the OBD1 distributor, injectors, and alternator in favor for these same parts in OBD2 form, correct?
</TD></TR></TABLE>

Yup, I know I would have to do this, this is the reason I have the 95 SOHC vtec harness here for the plugs and all.

Probably I was not precise about the part where I talked about using the OBD1 harness... I would get the ECU to firewall part of the harness also to convert the whole car to OBD1. I will have some wiring to do of course but is it in any way a viable option?

Otherwise i'll get an OBD2 EX harness, repin some plugs for the dizzy/injectors/sensors, the OBD2a/OBD1 converter and the P28 and call it a day... most likely the easiest way and alot less wiring and a cleaner job.

Thanks for the help!

97hb

There is no ptank wire in the 96-98 cx,dx civic wiring harness. Code "91" ECU connector D15

HXMan

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97hb &raquo;</TD></TR><TR><TD CLASS="quote">There is no ptank wire in the 96-98 cx,dx civic wiring harness. Code "91" ECU connector D15</TD></TR></TABLE>

Or Hx.

I found a 96 GSR ecu will not throw code 91. 97 GSR Pyrotect ECU will...I know from experience.

inspyral

I'm putting a 98 B18B1 into my 97 EX. Are there any problems with using my EX harness, or do I need to move some pins or get a non-VTEC harness?

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by inspyral &raquo;</TD></TR><TR><TD CLASS="quote">I'm putting a 98 B18B1 into my 97 EX. Are there any problems with using my EX harness, or do I need to move some pins or get a non-VTEC harness?</TD></TR></TABLE>

nope, you shouldn't have any problems with your swap as the EX harness is the key in having a wire-hassle-free install.

ASHY-ELBOW

[QUOTE=Katman]


Also, I assume you're going to change the OBD1 distributor, injectors, and alternator in favor for these same parts in OBD2 form, correct?


i am doing a swap kinda like this in my 98 dx hatch, and i know i just need to get to work and start doing it but all the wiring is getting me confused. I am using an obd1 b18c1 swap with obd1 gsr ecu, i have the conversion harness with the extra wires hanging off for me to make a sub harness(knock,vtec oil press,intake butterflies,vtec sol)
i know using an ex harness would be easier but i have run outta money so i am using my obd1 distr,injectors, and whatever else came with the swap. My question's are
1. i know i only need one o2 sensor but which one on the dx harness does the jumper see the upper one or lower one?

2.do i have to change wiring on the distributor for my obd1 dizzy ? if so does anyone have a pic or diagram of this?

3. injectors i am assuming i can just use my obd1 injector clips

4 alternator does it have to be obd1? i have access to a 99-si alternator will that work?

5. and as he asked above do i have to do the iacv fix on the gsr?

any help would be great guys , i just wanna get cracking on this thing but i dont wanna make it harder than it really is

ASHY-ELBOW

0mtber

iTrader: (2)

found it thanks

blackstar

iTrader: (12)

DAMN katman, u put alot of work into those diagram. thanx to u and whoever helped u!!!

question? i'm using the 99 si harness but i'll be using a jumper harness and a p28 in my EK obd2b. whats the best way to wire everything??

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackstar &raquo;</TD></TR><TR><TD CLASS="quote">DAMN katman, u put alot of work into those diagram. thanx to u and whoever helped u!!!

question? i'm using the 99 si harness but i'll be using a jumper harness and a p28 in my EK obd2b. whats the best way to wire everything??</TD></TR></TABLE>

ok, you won't need to wire anything since you're using an 99Si engine harness.
You're good to go. The ecu jumper should work without problems either.

redcivicek

i have a ls vtec. 96 gsr head, b18 a block. the car will idle fine but will not rev. i followed the diagram for 96-98. im using a stock dx automatic harness. im getting codes, 3,4,7,10,22,91. im using a 97 ex ecu

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redcivicek &raquo;</TD></TR><TR><TD CLASS="quote">i have a ls vtec. 96 gsr head, b18 a block. the car will idle fine but will not rev. i followed the diagram for 96-98. im using a stock dx automatic harness. im getting codes, 3,4,7,10,22,91. im using a 97 ex ecu</TD></TR></TABLE>

hmm..i think AUTO obd2 civic harnesses are problamatic when it comes to using them on a 5speed engine....from what I've seen....

I say try finding yourself a 5speed 96-98 CX/DX or EX harness and use accordingly...

redcivicek

i have everything sorted out. the only two problems are code 91. and vtec pressure has a 2 wire plug. i know one goes to the ecu, where do the other one go.

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redcivicek &raquo;</TD></TR><TR><TD CLASS="quote">i have everything sorted out. the only two problems are code 91. and vtec pressure has a 2 wire plug. i know one goes to the ecu, where do the other one go.</TD></TR></TABLE>

code 91 = Fuel Tank Pressure Sensor


what type & year ecu are you using?

Jinxed

i just put a 97 b18b & ecu into a 97 civic cx &
i also have code 91.

i believe it has something to do with the cx not having a tank sensor.
anyone know the voltage the tank sensor gives when operating normally???

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jinxed &raquo;</TD></TR><TR><TD CLASS="quote">i just put a 97 b18b & ecu into a 97 civic cx &
i also have code 91.

i believe it has something to do with the cx not having a tank sensor.
anyone know the voltage the tank sensor gives when operating normally???
</TD></TR></TABLE>

hmm, this fuel tank sensor code is a new issue for me....
Need to get to the bottom of this, and put the info on my 96-98 wiring diagram...