Pontiac Solstice Forum - View Single Post - PLX Wideband O2 Sensor install....

Quote:

Originally Posted by scdyne

LC-1 WB02:
I installed mine in the stock O2 bung and used the simulated O2 signal for the NB02.
Casper's has an O2 extension cable that comes with a male and female connector for the O2 sensor you can purchase to piggy back your power with.

- Splice into Casper's harness (instead of the OEM harness or O2 cables) to get the (D) 12V+ switched power and (C) ground lines for the WB02 controller.
- Leave the stock O2 connected also, but zip tied off somewhere to prevent DTCs.
- Run the simulated NB02 signal line and the (B) OEM NB02 signal to a rocker switch and out to the ECU
- After the key is on, but before the car is started switch the rocker to simulated.
- When the engine is turned off switch back to OEM NB02 signal.

A = TAN = Lo O2 signal -
B = PUR = Hi O2 Signal +
C = GRY = Heater Li (ground)
D = BLK = Heater Hi (12V+)

The reason for this is that the ECU does a Heater circuit and Sensor circuit test on start-up and if either fails it will cause a DTC. One requires a specific amp load (more than just the PLX or LC-1 pulls) and the other is a resistance check.

You can also satisfy both circuits with resistors and capacitors to eliminate the the OEM sensor all together, but it's a little complex.

Great reading Adam. The mods should sticky the wiring diagram.

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	madmods Member Join Date: Sep 2006 Location: Scottsdale, Az	Quote: Originally Posted by scdyne LC-1 WB02: I installed mine in the stock O2 bung and used the simulated O2 signal for the NB02. Casper's has an O2 extension cable that comes with a male and female connector for the O2 sensor you can purchase to piggy back your power with. - Splice into Casper's harness (instead of the OEM harness or O2 cables) to get the (D) 12V+ switched power and (C) ground lines for the WB02 controller. - Leave the stock O2 connected also, but zip tied off somewhere to prevent DTCs. - Run the simulated NB02 signal line and the (B) OEM NB02 signal to a rocker switch and out to the ECU - After the key is on, but before the car is started switch the rocker to simulated. - When the engine is turned off switch back to OEM NB02 signal. A = TAN = Lo O2 signal - B = PUR = Hi O2 Signal + C = GRY = Heater Li (ground) D = BLK = Heater Hi (12V+) The reason for this is that the ECU does a Heater circuit and Sensor circuit test on start-up and if either fails it will cause a DTC. One requires a specific amp load (more than just the PLX or LC-1 pulls) and the other is a resistance check. You can also satisfy both circuits with resistors and capacitors to eliminate the the OEM sensor all together, but it's a little complex. Great reading Adam. The mods should sticky the wiring diagram. __________________ Team Solstice 2009 How I built my solstice: http://www.cardomain.com/ride/2661209 2008 show sponsors: Team Solstice 2008, Tillett, Wind Restrictor, Werks, Aspis, Norm's Fiberglass, DDM, AfterShock, Universal Studios, Cardomain, Easystreet AirLift, Alpine, Parkerracing, Madmods-Motorsports, Scap. To be a sponsor, just pm me. See madmods in the upcoming Fast & Furious 4. 2009 Colorado Nationals attendee! I will be there and want to party with everyone. Some of you owe me a beer.