woot, hit 60k on my rb, now help me out!!

[Rb20_POWER]

Hey everyone, just turned over 60k on my rb20det and would like to replace the o2 sensor. Got the universal Bosch type o2 and am wondering about the heater wires/signal wires. From the fsm it seems like the red and black wires are the heater wires and the white is the signal. Can someone clarify before i do the snipping?? thanks fellas!

[Joe]

universal is a no-no

and youre just randomly replacing it at 60k? why?

[Sil240]

Return it.Get your $ back and get the right one.

I believe I'm using the O2 sensor from a 200sx CA20ET. Don't quote me on that.Check the Stickys and FAQ section.

Was the car running funny?Do you have a hunting idle?

[gawdzilla]

why is it a no-no? I'm using some generic bosch replacements for a foxbody 5.0 mustang re-wired for my RB harness. it should be easy to figure out which 2 are for the heater (polarity does not matter) and which wire is for the sensor. open up the harness a bit or trace back. the signal wire is usually shielded. generic 3-wire works, or you could even use a 1-wire if you want.

i do agree that you don't need to randomly replace it at 60k though if it's not busted.

[Rb20_POWER]

why is it a no-no? I'm using some generic bosch replacements for a foxbody 5.0 mustang re-wired for my RB harness. it should be easy to figure out which 2 are for the heater (polarity does not matter) and which wire is for the sensor. open up the harness a bit or trace back. the signal wire is usually shielded. generic 3-wire works, or you could even use a 1-wire if you want.

i do agree that you don't need to randomly replace it at 60k though if it's not busted.

agreed. There is nothing wrong with a Bosch universal, specifically asked for a o2 sensor for a 1984 300zx turbo and it came as a 3-wire replacement. Went in perfectly and works perfectly. Replaced it because Nissan suggested it as a replacement at 60k and thought at $50 instead of a small fortune at Nissan dealership was a damn good deal...Don't hate cause you went out and spent the big $$$..

[Joe]

uh youre replacing a sensor that isnt broken. you are the one spending money for no reason. anyone that recommends replacing an o2 sensor at 60k "just because" its trying to sell you something

and universal sensors suck because sometimes they can be miscalibrated for the readings expected by the ECU you cheap bastards.

[Rb20_POWER]

you've never replaced something before it broke???

[gawdzilla]

and universal sensors suck because sometimes they can be miscalibrated for the readings expected by the ECU you cheap bastards.

care to back up that claim? miscalibrated how? as in it doesn't read rich/lean? it's not an insignificant amount of money between a universal or other car specific vs. OEM. an OEM sensor is probably at least $50 more and all you're getting is a drop in replacement. buy a universal and solder it to your old broken sensor's plug to salvage it. my motor came with a broken one so i bought a universal bosch replacement. no problems with the car going into closed loop. voltage goes rich/lean above and below .5 V, just like the factory. how is that being a cheap bastard?

[Joe]

you've never replaced something before it broke???

of course i have. items that are designed to wear out and break. an o2 sensor is not one of those. you use it TILL it breaks.

care to back up that claim? miscalibrated how? as in it doesn't read rich/lean? it's not an insignificant amount of money between a universal or other car specific vs. OEM. an OEM sensor is probably at least $50 more and all you're getting is a drop in replacement. buy a universal and solder it to your old broken sensor's plug to salvage it. my motor came with a broken one so i bought a universal bosch replacement. no problems with the car going into closed loop. voltage goes rich/lean above and below .5 V, just like the factory. how is that being a cheap bastard?

aside from the possibility of reading differences (im not an engineer, i dont know) the heater circuit watt ratings can be different and shorten the life of not only the sensor, but the ECU. its not worth the risk to save $40

by no means am i saying this is a guarantee but is it worth the risk?