so we are about to wire the secondary o2 up on my 00 cx. i am using a usdm p2t with my 00 b16 and we can not find the wire locations on the pinout for the two black wires (power and ground). anyone? thanks in advance.

 

i REALLY need pin locations for the power(12 volt i believe) and a good ground. right now i am thinking A17(acc) for power and i have NO clue what to use for a ground. i've exhausted myself searching...can anyone help?!?!?



thanks for the schematic again katman!!!


Modified by 2000CX at 6:26 PM 7/14/2003

 

For O2 wiring, they tap into the IAT and it's grounded from there. For OBD1 it goes to the D22 pinout, as for OBD2 I am not sure, but I am pretty sure it's tapped into the Grn/Wht wire at the IAT just like OBD1.

HTH.

 

IAT = C25 correct? can anyone familar with 99-00 si please confirm?

 

That may be the IAT pinout, however the IAT also has a sensor ground. Which is the other wire.

 

well i gave it a shot...and still throwing a code 65...maybe the sensor is bad. or it could just be my lack of wiring skills whos knows...up for more ideas

 

after thinking about tthis in bed ALL night last night i figure i will wait until i get the ecu pinouts for the power and the ground. i think that piggy backing the wires is no good...i want to run it all from the ecu to make it more simple. just to refresh the post this is what i have so far:

02 wire: blk--> blk/wht --->ECU A8 (heater control)
02 wire: blk--> ? (power i believe)
02 wire: wht-->wht/red -->ECU A23 (input)
02 wire: grn --> ?(ground i believe)

this is for the secondary o2 sensor for a 99-00 si p2t ecu. anyone got any tips?

 

i'm starting to freak out now...i feel like the car is running worse everyday. it hesitates SO much in first...and the idle is rough as hell. i need to fix this so i can be sure nothing else is wrong.

 

I'm still trying to find pinouts for the secondary O2 sensor man, sorry bout that.

 

thanks man...i am still poking around here and other various website.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2000CX &raquo;</TD></TR><TR><TD CLASS="quote">thanks man...i am still poking around here and other various website.</TD></TR></TABLE>

I have a friend with an OBD2 helms and I'm just waiting for him to be able to get me the pinouts and diagrams

Sorry it's taking so long.

 

hey 2000cx when u figuere out how to get rid of that o2 sensor problem let me know im having the same problem i have know idea how to wire that sensor.

 

believe me...when i get this done (and working) i think i am going to write a how-to. still looking for answers now though.

 

1.white goes to pin a23 (white/red)
2. green goes to pin c18 (green/white)
3. black goes to pin a8 (black/white)
4. black goes to pin b1 tap this wire and reconnect all wires

http://honda.hybrids.jp/forum/...&part=

 

how do i read the wires at the sensor to get the black ones right....top to bottom and left to right...just like the ecu plugs? thanks so much Jackson...gotta work today but i will be trying this tomorrow night. i will be sure and update you with the result.