what harness does you secondary o2 tie into? is it the main engine harness or is it something in the cabin? pics would be HUGE if you have some. thanks a lot for anyone who can help me out.

 

it ties into another harness. The engine harness only goes into the engine bay from the ECU. I think the 2ndary O2 sensor harness goes into the green plug harness at the ECU.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AzSi22 &raquo;</TD></TR><TR><TD CLASS="quote">
I think the 2ndary O2 sensor harness goes into the green plug harness at the ECU.
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anyone second this?

 

keepin' it at the top...

 

doin a jdm or usdm based engine, i am in the midst of a 99 swap and only one o2 is needed, but if you are doin a usdm engine you will need that.

 

or if he is staying with OBDII

If id dries up latar tonight i will go look under my car i don't want to get all wet.

 

yes...i am staying obdII...and i would love to know where the harness ties into. anyone comment on the 'green plug' theory? from seeing how long the harness on the stock o2 was i assume it has to run up into the cabin right around the driver side floor...but then where is beyond me right now?!?!?!

 

Actually, I think I'm wrong. I forgot that there is a harness that goes into the car on the driver side. I think that is where the 2ndary O2 wires feed through. But I think they go from under the center console to the driver side to the engine bay to the ecu.

 

can anyone actually see what harness it ties into and where? i am trying to get an idea so i can make it truly plug and play...hard wiring is not working for me. this is the secondary i am talking about...keep that in mind.

 

bump it up...

 

I'm not sure where it comes from, but I know for a fact that it doesn't come of the engine harness. It goes straight into the floorpan for the o2 sensor.

 

anyone else...

 

which oens the secondary

 

yes...secondary o2.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2000CX &raquo;</TD></TR><TR><TD CLASS="quote">what harness does you secondary o2 tie into? is it the main engine harness or is it something in the cabin? pics would be HUGE if you have some. thanks a lot for anyone who can help me out.</TD></TR></TABLE>


It runs up directly obove the cat to a plug...That plug goes throught he floorboard to the ecu

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nasi &raquo;</TD></TR><TR><TD CLASS="quote">
It runs up directly obove the cat to a plug...That plug goes throught he floorboard to the ecu
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ok...i got the through the floorboard part. how exactly does it get to the ecu? the o2 itself has a very short harness...so is this something that only comes on the Si? i ripped my whole entire interior out tonight on found nothing that even resembled the plug on the o2.

 

it runs straight to the primary O2 sensor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KURRRWA &raquo;</TD></TR><TR><TD CLASS="quote">
it runs straight to the primary O2 sensor.
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?