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wiring in universal O2
Posted: Sun Nov 21, 2004 2:26 am
by The Scooby
well i picked up a bosch universal O2 to replace my factory one that had 169K on it, well here lies the problem, the bosch has 3 wires, 2 white 1 black, the factory one has 1 red, 1 white, and 1 black, i hooked the grounds together as i should but how do i tell if i hooked the others to the right one's
thanks,
shean
Posted: Sun Nov 21, 2004 2:59 am
by vrg3
Here's the info you need:
Code: Select all
OEM sensor-side | OEM car-side |Bosch 3-wire | Description
wire color | wire color | wire color |
----------------|--------------|-------------|------------
RED | YELLOW/RED | WHITE | Heater +
BLACK | BLACK/WHITE | WHITE | Heater -
WHITE | WHITE | BLACK | Signal
Posted: Sun Nov 21, 2004 3:14 am
by evolutionmovement
Excellent! I just started getting the o2 code this past week. It comes on once in a ahile on the highway for about a minute and then goes off. I guess it's time for the original to go.
Steve
Posted: Sun Nov 21, 2004 3:25 am
by vrg3
The original 250,000-mile-old one? Wow...
You can save some money by getting a 1-wire sensor if you don't mind staying in open loop a little longer.
Posted: Mon Nov 22, 2004 7:50 am
by NICO
vrg when i un plug my o2 it runs better then if it was pluged in, what is its problem.
also i to wired up a aftermarket 02 sensore its called a ntk or some thing of those lines. should i get a bosch.
Posted: Mon Nov 22, 2004 4:19 pm
by vrg3
Sounds like your sensor is bad, Nico. Have you tried measuring its output signal?
NGK makes very good oxygen sensors (and brands them NTK), as does Bosch. Your problem isn't that it's an NTK sensor, but it may be that it's gone bad.
You can damage an oxygen sensor by running leaded fuel, by exposing the fuel, oil, intake, or front exhaust to non-sensor-safe silicone, by using certain fuel or motor treatments, or by getting excessive dirt, moisture, or paint on the outside of the sensor.