Here are the specs.

1990 crx HF
B18b
90 HF harness COMPLETE
Rywire dist jumpers
Rywire obd0-1 harness
obd1 Dist
socketed obd1 P75
Neptune p75 basemap (running open loop )

I have everything hooked up and it wont start.just cranks. If I cut the jumper to disable the neptune and go back to the stock program, it starts but runs bad of course cuz there is no 4 wire o2 hooked up. Saying I did hook up the o2 and it ran fine, I would still be screwed when i go to tune it since I would resolder the jumper to activate the Neptune chipcome back to where i started. This is the 2nd chip Tony1 puts in it since we thought maybe the 1st one was a bad chip. I plugged everything up minus the pigtail for all the vtec stuff and 4 wire o2 stuff. anyone have any ideas on what the deal is? I hooked it up to my friends teg and it works perfect in his.
I searched for about an hour and seriously found nothing useful. lots of civic vx 4 wire 02 threads, pointless obd0-1 threads. help me out guys.

 

gee golly wiz. wat a surprise . no ones responded. i love honda-tech. full of useless knowitalls that dont know anything when asked a question

 

Any codes? Start the car on a stock ecu and see what codes you get.

 

I got a code 41 & 8. I got the harness from fracas and he says he got it from you . It doesnt look like a rywire though cuz it has 3 black wires. i couldnt get codes to come up with his harness . i tried every wire and no codes came up . Red_crx came by now and it still wont start but I got codes.

 

i decided to go ahead and boost. thanks for nothing to those who didnt respond.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ch3mik &raquo;</TD></TR><TR><TD CLASS="quote">I got a code 41 & 8. I got the harness from fracas and he says he got it from you . It doesnt look like a rywire though cuz it has 3 black wires. i couldnt get codes to come up with his harness . i tried every wire and no codes came up . Red_crx came by now and it still wont start but I got codes. </TD></TR></TABLE>

Take a picture of the harness. If you have code 8, then that is the problem. I bet you do not have a rywire harness and you are trying to use the rywire distributor jumper. The harness you have is wired sensor for sensor on the distributor wiring. The rywire distributor jumper is wired color for color. Not compatible and needs to be rewired.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blown90hatcH &raquo;</TD></TR><TR><TD CLASS="quote">

Take a picture of the harness. If you have code 8, then that is the problem. I bet you do not have a rywire harness and you are trying to use the rywire distributor jumper. The harness you have is wired sensor for sensor on the distributor wiring. The rywire distributor jumper is wired color for color. Not compatible and needs to be rewired.</TD></TR></TABLE>
Actually its a harness i got from you ....thats the one he is using

 

yep. i got codes with the rywire harness. the other one did nothing.

 

Still waiting on some pics.

 

ill get them in 4 hours

 

okay here are the pics. now can ANYONE tell me which wires are for the 02 sensor. ill be using Rigos harness. thanks .



This harness has 3 black wires. The instructions I recieved with it indicate a brown wire is for the 02. There is no brown wire on it. I tried hooking it up with this and nothing. I also wasnt able to get codes with this by putting the blue and red wires togeter . I tried putting all of them together and get no codes.


This harness has a brown wire. Ive attempted to wire it using the instructions that call for a brown wire. still gettina code 41 for the o2 . this one did give me ECU codes.


Modified by Ch3mik at 8:44 PM 3/9/2006

 

Fracas' harness is not mine. That is some knock off.

Rigo's harness is my design. The O2 wires are:

Brown wire = O2 heater.....Goes to OBD1 A6
Purple wire = O2 ground....Goes to OBD1 D22
Yellow wire = 12v Powa.....Goes to OBD1 A25
Grey wire = O2 signal......Goes to OBD1 D14

Jason

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blown90hatcH &raquo;</TD></TR><TR><TD CLASS="quote">Fracas' harness is not mine. That is some knock off.

Rigo's harness is my design. The O2 wires are:

Brown wire = O2 heater.....Goes to OBD1 A6
Purple wire = O2 ground....Goes to OBD1 D22
Yellow wire = 12v Powa.....Goes to OBD1 A25
Grey wire = O2 signal......Goes to OBD1 D14

Jason</TD></TR></TABLE>
he told me he got it from you. I found a pic on here of wat wire is wat on the actual plug and now cant find it again. do you have a link for it by chance?

 

found the pic and cleared code 8. wired up the o2 per the specs above and im still gettin the code. i think the o2 may be bad. ill try another one tomorrow

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ch3mik &raquo;</TD></TR><TR><TD CLASS="quote">found the pic and cleared code 8. wired up the o2 per the specs above and im still gettin the code. i think the o2 may be bad. ill try another one tomorrow </TD></TR></TABLE>

i guess i dont have to take my dizzy anymore hehe

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18_crx &raquo;</TD></TR><TR><TD CLASS="quote">i guess i dont have to take my dizzy anymore hehe</TD></TR></TABLE>
no foo
thanks for helpin me out tonite mang. i appreciate it

 

no problema amigo! i am not throwing anymore codes............