o2 sensor wires for a b18c1 in a 95 cx hatch? what do i do??!?
07-06-2006, 08:42 PM
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o2 sensor wires for a b18c1 in a 95 cx hatch? what do i do??!?
im almost done with my gsr swap into my 95 civic cx, but im not sure what to do with the o2 sensor. do i keep the sensor from my civic? use the one from the gsr? im using the cx engine harness also. if i need to run wires for the gsr o2 sensor. where do i run them? im anxious to get this running and this is one of the only things holding me back at the moment. 
07-10-2006, 10:32 PM
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Re: o2 sensor wires for a b18c1 in a 95 cx hatch? what do i do??!? (civicskater)
It's the same O2 sensor. It should bolt right up.
Save yourself the $250+ on a new one. . .
Save yourself the $250+ on a new one. . .
07-11-2006, 07:45 AM
#3
Re: o2 sensor wires for a b18c1 in a 95 cx hatch? what do i do??!? (bgcrx)
No it's not the same sensor. The Civic CX uses a 1-wire O2 sensor, and the GSR motor has a 4-wire O2 sensor.
You will need to wire up the 4-wire O2 sensor to make the GSR motor run properly. You should already have the wiring diagrams for the Civic (otherwise you shouldn't be doing a swap). Your going to have to add the other 3 sensor wires to the engine harness exactly as the Civic diagram shows for the Si/EX/DX/LX. That means running one wire to the proper pin location on the passengers side shock tower plug. The other two wires will have to be spliced into the proper ECU sensor grounding wires that are already on the engine harness...
The good news is that the main wire harness (not engine harness) already has all the wires running to the ECU for the 4-wire O2. That means once you hook up the GSR ECU, the O2 sensor will work.
Your also going to have to wire up the following from the sensor all the way to the ECU:
- VTEC pressure switch (if using USDM ECU)
- VTEC solenoid
- Intake Air Bypass
- Knock sensor (if using the GSR ECU)
FYI: This would all be "plug-n-play" if you just purchased a used USDM GSR engine harness from whatever year Integra your motor is from. You would then only have to add the VTEC wires to the ECU from the shock tower harness...
You will need to wire up the 4-wire O2 sensor to make the GSR motor run properly. You should already have the wiring diagrams for the Civic (otherwise you shouldn't be doing a swap). Your going to have to add the other 3 sensor wires to the engine harness exactly as the Civic diagram shows for the Si/EX/DX/LX. That means running one wire to the proper pin location on the passengers side shock tower plug. The other two wires will have to be spliced into the proper ECU sensor grounding wires that are already on the engine harness...
The good news is that the main wire harness (not engine harness) already has all the wires running to the ECU for the 4-wire O2. That means once you hook up the GSR ECU, the O2 sensor will work.
Your also going to have to wire up the following from the sensor all the way to the ECU:
- VTEC pressure switch (if using USDM ECU)
- VTEC solenoid
- Intake Air Bypass
- Knock sensor (if using the GSR ECU)
FYI: This would all be "plug-n-play" if you just purchased a used USDM GSR engine harness from whatever year Integra your motor is from. You would then only have to add the VTEC wires to the ECU from the shock tower harness...
07-11-2006, 10:36 AM
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Re: o2 sensor wires for a b18c1 in a 95 cx hatch? what do i do??!? (94eg!)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94eg! »</TD></TR><TR><TD CLASS="quote">The good news is that the main wire harness (not engine harness) already has all the wires running to the ECU for the 4-wire O2. That means once you hook up the GSR ECU, the O2 sensor will work....</TD></TR></TABLE>
not on the '95, only on the 92 and some 93s are prewired. you're going to have to add the one wire to the ECU for O2 heater control, the power and ground for the O2 sensor and O2 heater can be pulled from the engine bay.
not on the '95, only on the 92 and some 93s are prewired. you're going to have to add the one wire to the ECU for O2 heater control, the power and ground for the O2 sensor and O2 heater can be pulled from the engine bay.
07-11-2006, 10:55 AM
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Re: o2 sensor wires for a b18c1 in a 95 cx hatch? what do i do??!? (Relic1)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Relic1 »</TD></TR><TR><TD CLASS="quote">not on the '95, only on the 92 and some 93s are prewired. you're going to have to add the one wire to the ECU for O2 heater control, the power and ground for the O2 sensor and O2 heater can be pulled from the engine bay.</TD></TR></TABLE>
All CX chassis have the wiring for the 4-wire O2 on the main harness (under-dash). My 94 CX does for sure, as I just wired up a B18C-R swap in my 94 CX last week. Also, the CX uses the same main harness as the DX, LX & Cali-CX (all 4-wire O2 Non VTEC engines). The only difference in the 92 model is that they also have the two VTEC wires (I've confirmed on my friends 92 CX). I don't know how much money Honda saved by taking two wires out of their main harness, but it was a lame decision on their part regardless...
All CX chassis have the wiring for the 4-wire O2 on the main harness (under-dash). My 94 CX does for sure, as I just wired up a B18C-R swap in my 94 CX last week. Also, the CX uses the same main harness as the DX, LX & Cali-CX (all 4-wire O2 Non VTEC engines). The only difference in the 92 model is that they also have the two VTEC wires (I've confirmed on my friends 92 CX). I don't know how much money Honda saved by taking two wires out of their main harness, but it was a lame decision on their part regardless...
07-11-2006, 01:46 PM
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Re: o2 sensor wires for a b18c1 in a 95 cx hatch? what do i do??!? (94eg!)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94eg! »</TD></TR><TR><TD CLASS="quote">
All CX chassis have the wiring for the 4-wire O2 on the main harness (under-dash). My 94 CX does for sure, as I just wired up a B18C-R swap in my 94 CX last week. Also, the CX uses the same main harness as the DX, LX & Cali-CX (all 4-wire O2 Non VTEC engines). The only difference in the 92 model is that they also have the two VTEC wires (I've confirmed on my friends 92 CX). I don't know how much money Honda saved by taking two wires out of their main harness, but it was a lame decision on their part regardless...</TD></TR></TABLE>
that I did not know. (I've learned my one thing for the day, I can go home now)
All CX chassis have the wiring for the 4-wire O2 on the main harness (under-dash). My 94 CX does for sure, as I just wired up a B18C-R swap in my 94 CX last week. Also, the CX uses the same main harness as the DX, LX & Cali-CX (all 4-wire O2 Non VTEC engines). The only difference in the 92 model is that they also have the two VTEC wires (I've confirmed on my friends 92 CX). I don't know how much money Honda saved by taking two wires out of their main harness, but it was a lame decision on their part regardless...</TD></TR></TABLE>
that I did not know. (I've learned my one thing for the day, I can go home now)
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