02 sensor issues w/S13 SR Blacktop (yes ive searched, been doing it for over a week) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

dorkidori_s13 · 07-16-2012, 09:47 PM

hi all

before i start, i dont want some bullshit answer like "oh just get rid of your 02, its fine without it". the point of this thread is that i NEED a fully functional 02 sensor!

with that being said...

i got my hands on a consult port cable with USB link. im running ECU Talk 1.3.5 software to monitor my ECU/Sensors via the consult port. now the problem im running into is that i dont think i have the correct 02 sensor, OR, something is really messed up.

i JUST replaced my 02 sensor on my S13 BLACKTOP SR20DET (NOT S14/S15 NOTCHTOP!!!) about 3 weeks back with the USDM fat type BOSCH from a 95 300zx TT (part#13091). i am currently trying to pass a sniffer and my CO levels arent stirring the Kool-Aid.

upon running ECU Talk with my consult port setup, the software gauge for the 02 sensor is showing me NOTHING. the gauge is capable of reading between 0 and 1 (volts). the 02 sensor SHOULD be working even when the motors cold and warming up (hence, its a heated 02 sensor). well, again, ECU Talk is showing me nothing for my 02 sensor. my A/F ratio gauge is stuck in the center at 100 (it twitches sometimes but immediately moves back to 100). i multimetered the 02 plug on the SR harness, i am getting power and such from it.

so yeah, im REALLY stuck. i have exactly a week to get my car "smogged" (as long as i can pass a sniffer im fine), but until my 02 sensor starts working, my SR is running like shit and wont pass the sniffer test because of CO levels that are way off after the high speed test.

Wanabe · 07-16-2012, 10:33 PM

Maybe you got a bad O2 sensor? Probably not but just a thought.

jholman · 07-17-2012, 12:31 AM

try an O2 off of like a 93 Sentra Se-R. It may work?

dorkidori_s13 · 07-17-2012, 12:37 AM

Quote:

Originally Posted by jholman

try an O2 off of like a 93 Sentra Se-R. It may work?

FWD SR20de 02 sensors are incompatable with RWD SR20det motors (from everything ive read, which literally feels like EVERYTHING but the answer i need)

and it has already been determined time and time again that the SR20det S13 redtop and S13 blacktop 02 sensors are completely different in their operation based on 02 sensor make up and ECU functionality.

not bitching you out or anything, just stating it so it doesnt get repeated in the thread (should the thread actually continue)

im halfway tempted to try a redtop 02 sensor just for shits and giggles (since its one of the FEW things i havent tired)

cotbu · 07-17-2012, 01:33 AM

Is the ecu chipped? Maybe 02 sensing is turned off.
If not check the voltage at the sensor harness.

riptor · 07-17-2012, 02:11 AM

do you get ANY voltage readings. and are you letting the car FULLLY warm up to operating temp ,mine settle at around 70*C, before trying to get readings? also, what brand of windeband are you using? my AFR's were REALLY low, like sub 10's, before i had my timing adjusted. if could be something there. also was it working before you changed your o2 sensor?

dorkidori_s13 · 07-17-2012, 09:03 AM

as far as i know, the ECU is oem (i havent cracked it open to look yet).

im not using a wideband riptor. i didnt check my last 02 sensor before i pulled it (dumb ass me), this was before i had my consult cable and software.

JDMRIDDAZ · 07-17-2012, 09:21 AM

ok on sr20det swaps theres a brown wire from sr20det harness...connecting at the f9 f10 connectors by where battery is located
that needs ignition...this gives power to o2 ...
if ur not getting any readings
also if o2 sensor wires were extended were they extended with the correct wire...
also ur car should run fine w or w out o2 plugged in...and ive used both on a blktop and redtop visa versa...no real diff..
go over all switch wires at those two plugs make sure they are getting 12v and above when car is running if voltage is crappy on any of these wires ur swap will not run correctly

riptor · 07-17-2012, 10:14 AM

Quote:

Originally Posted by dorkidori_s13

i didnt check my last 02 sensor before i pulled it (dumb ass me), this was before i had my consult cable and software.

lol...i mean what was the reason for changing your o2 in the first place.

dorkidori_s13 · 07-17-2012, 01:17 PM

Quote:

Originally Posted by riptor

lol...i mean what was the reason for changing your o2 in the first place.

Quote:

Originally Posted by dorkidori_s13

i am currently trying to pass a sniffer and my CO levels arent stirring the Kool-Aid.

sniffer as in smog

the CO levels are going thru the roof for a few seconds once i let off the throttle after the high speed RPM test. its causing me to fail the sniffer test for smog inspection (and yes, my BOV is recirculated). the car has never run 100% thru the initial power band where the 02 sensor matters the most. im guessing the 02 sensor has never worked to begin with.

dorkidori_s13 · 07-17-2012, 01:23 PM

forgot to mention, i got a multimetere out yesterday and tested the plug. it IS receiving voltage. im just not getting a reading from the 02 at all.

cotbu · 07-17-2012, 08:10 PM

Did you crack open that ecu? I think sensing is turned off, and probably knock too!

dorkidori_s13 · 07-17-2012, 08:16 PM

havent opened the ECU. outside of chipping it, how the hell would you turn that off?

mobmotorsports2002 · 07-17-2012, 08:33 PM

What ecu are you running in the car? Is it a redtop #62 or blacktop e5? The blacktop e5 ecu grounds the o2 sensor thru the ecu itself but the redtop #62 ecu grounds the o2 to a chassie ground. I had the same issue i was using a #62 ecu on a blacktop motor in my s13 and got the correct skinny o2 but it was unresponsive. After grounding to valve cover for the fun of it the o2 started working. Hope this helps.

cotbu · 07-17-2012, 08:34 PM

Quote:

Originally Posted by dorkidori_s13

havent opened the ECU. outside of chipping it, how the hell would you turn that off?

unplug it!

If the 02 sensor is working and wiring is correct, you would get a reading from the consult stream, period unless you say don't monitor this stream.
even if you used , the narrow band output from a wideband, redtop or blacktop 02, or a generic 3 wire whatever. as long as they are wired correctly you should see something. working correctly is a different story.

You verified continuity from the signal wire from 02 to the ecu correct. If you are not chipped I'm lost if you checked the wiring.

dorkidori_s13 · 07-17-2012, 08:37 PM

i have an E5/E6 ECU

so by unplugging it, the ECU will reset?

cotbu · 07-17-2012, 08:45 PM

No, the ecu will just run what the map tells it too! You might be close to stoich or far from either direction, but no correction from the 02 sensor, all mapping!
Also no new learning, you could clear the long and short term trims and I know most of the time the ecu will run lean for a short period. not really hear nor there!

blessedhellrider · 07-17-2012, 08:54 PM

AEM's UEGO O2 Sensor Test - How to check to see if your aftermarket O2 sensor is bad - YouTube

xMOAR LOW S13x · 03-20-2013, 10:07 PM

Does your sr kinda hickup when you drive it and seems way underpowred.

ultimateirving · 03-21-2013, 10:43 AM

Listen man, i haev same ecu and had issues with my o2 sensor not working. Sooo i cut the signal wire that tells the ecu how much voltage the o2 unit sees, i wired that directly to the o2 input on the ECU.
I ran my own wire and from then on i was able to see the o2 voltage in consult..

07-17-2012, 12:31 AM	#3
jholman Leaky Injector Join Date: Sep 2010 Location: Va bitches Age: 24 Posts: 145 Trader Rating: (0) Feedback Score: 0 reviews	try an O2 off of like a 93 Sentra Se-R. It may work? __________________

07-17-2012, 01:33 AM	#5
cotbu Nissanaholic! Join Date: Sep 2005 Location: DE Posts: 2,122 Trader Rating: (3) Feedback Score: 3 reviews	Is the ecu chipped? Maybe 02 sensing is turned off. If not check the voltage at the sensor harness. __________________ LoverTechnologies "Half Broken Things!" Last edited by cotbu; 07-17-2012 at 03:59 AM.. Reason: typing fail

07-17-2012, 09:03 AM	#7
dorkidori_s13 Wearing What You Drive Join Date: Oct 2007 Location: Las Vegas, NV Age: 31 Posts: 3,091 Trader Rating: (37) Feedback Score: 37 reviews	as far as i know, the ECU is oem (i havent cracked it open to look yet). im not using a wideband riptor. i didnt check my last 02 sensor before i pulled it (dumb ass me), this was before i had my consult cable and software. __________________ YES, DORKIDORI IS MAKING NEW SHIRTS! CLICK THE BANNER! ADD DORKIDORI ON FACEBOOK! CLICK HERE! Bought something from me??? POST A REVIEW HERE!!!

07-17-2012, 09:21 AM	#8
JDMRIDDAZ Zilvia Junkie Join Date: Sep 2007 Location: ｆォリダ Age: 36 Posts: 432 Trader Rating: (3) Feedback Score: 3 reviews	ok on sr20det swaps theres a brown wire from sr20det harness...connecting at the f9 f10 connectors by where battery is located that needs ignition...this gives power to o2 ... if ur not getting any readings also if o2 sensor wires were extended were they extended with the correct wire... also ur car should run fine w or w out o2 plugged in...and ive used both on a blktop and redtop visa versa...no real diff.. go over all switch wires at those two plugs make sure they are getting 12v and above when car is running if voltage is crappy on any of these wires ur swap will not run correctly __________________ シチサｎ w/ka20det:in progress シチサｎw/sr20det:stolen

07-17-2012, 01:23 PM	#11
dorkidori_s13 Wearing What You Drive Join Date: Oct 2007 Location: Las Vegas, NV Age: 31 Posts: 3,091 Trader Rating: (37) Feedback Score: 37 reviews	forgot to mention, i got a multimetere out yesterday and tested the plug. it IS receiving voltage. im just not getting a reading from the 02 at all. __________________ YES, DORKIDORI IS MAKING NEW SHIRTS! CLICK THE BANNER! ADD DORKIDORI ON FACEBOOK! CLICK HERE! Bought something from me??? POST A REVIEW HERE!!!

07-16-2012, 09:47 PM	#1
dorkidori_s13 Wearing What You Drive Join Date: Oct 2007 Location: Las Vegas, NV Age: 31 Posts: 3,091 Trader Rating: (37) Feedback Score: 37 reviews	02 sensor issues w/S13 SR Blacktop (yes ive searched, been doing it for over a week) hi all before i start, i dont want some bullshit answer like "oh just get rid of your 02, its fine without it". the point of this thread is that i NEED a fully functional 02 sensor! with that being said... i got my hands on a consult port cable with USB link. im running ECU Talk 1.3.5 software to monitor my ECU/Sensors via the consult port. now the problem im running into is that i dont think i have the correct 02 sensor, OR, something is really messed up. i JUST replaced my 02 sensor on my S13 BLACKTOP SR20DET (NOT S14/S15 NOTCHTOP!!!) about 3 weeks back with the USDM fat type BOSCH from a 95 300zx TT (part#13091). i am currently trying to pass a sniffer and my CO levels arent stirring the Kool-Aid. upon running ECU Talk with my consult port setup, the software gauge for the 02 sensor is showing me NOTHING. the gauge is capable of reading between 0 and 1 (volts). the 02 sensor SHOULD be working even when the motors cold and warming up (hence, its a heated 02 sensor). well, again, ECU Talk is showing me nothing for my 02 sensor. my A/F ratio gauge is stuck in the center at 100 (it twitches sometimes but immediately moves back to 100). i multimetered the 02 plug on the SR harness, i am getting power and such from it. so yeah, im REALLY stuck. i have exactly a week to get my car "smogged" (as long as i can pass a sniffer im fine), but until my 02 sensor starts working, my SR is running like shit and wont pass the sniffer test because of CO levels that are way off after the high speed test. __________________ YES, DORKIDORI IS MAKING NEW SHIRTS! CLICK THE BANNER! ADD DORKIDORI ON FACEBOOK! CLICK HERE! Bought something from me??? POST A REVIEW HERE!!! Last edited by dorkidori_s13; 07-16-2012 at 10:18 PM..

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07-16-2012, 10:33 PM	#2
Wanabe Zilvia Member Join Date: Nov 2010 Location: The Bay Area Posts: 153 Trader Rating: (6) Feedback Score: 6 reviews	Maybe you got a bad O2 sensor? Probably not but just a thought.

07-17-2012, 02:11 AM	#6
riptor Zilvia Member Join Date: Oct 2006 Location: va beach Age: 29 Posts: 231 Trader Rating: (2) Feedback Score: 2 reviews	do you get ANY voltage readings. and are you letting the car FULLLY warm up to operating temp ,mine settle at around 70*C, before trying to get readings? also, what brand of windeband are you using? my AFR's were REALLY low, like sub 10's, before i had my timing adjusted. if could be something there. also was it working before you changed your o2 sensor?

07-17-2012, 08:10 PM	#12
cotbu Nissanaholic! Join Date: Sep 2005 Location: DE Posts: 2,122 Trader Rating: (3) Feedback Score: 3 reviews	Did you crack open that ecu? I think sensing is turned off, and probably knock too! __________________ LoverTechnologies "Half Broken Things!"

07-17-2012, 08:16 PM	#13
dorkidori_s13 Wearing What You Drive Join Date: Oct 2007 Location: Las Vegas, NV Age: 31 Posts: 3,091 Trader Rating: (37) Feedback Score: 37 reviews	havent opened the ECU. outside of chipping it, how the hell would you turn that off? __________________ YES, DORKIDORI IS MAKING NEW SHIRTS! CLICK THE BANNER! ADD DORKIDORI ON FACEBOOK! CLICK HERE! Bought something from me??? POST A REVIEW HERE!!!

07-17-2012, 08:33 PM	#14
mobmotorsports2002 Join Date: Apr 2012 Location: Ohio Age: 33 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	What ecu are you running in the car? Is it a redtop #62 or blacktop e5? The blacktop e5 ecu grounds the o2 sensor thru the ecu itself but the redtop #62 ecu grounds the o2 to a chassie ground. I had the same issue i was using a #62 ecu on a blacktop motor in my s13 and got the correct skinny o2 but it was unresponsive. After grounding to valve cover for the fun of it the o2 started working. Hope this helps.

07-17-2012, 08:37 PM	#16
dorkidori_s13 Wearing What You Drive Join Date: Oct 2007 Location: Las Vegas, NV Age: 31 Posts: 3,091 Trader Rating: (37) Feedback Score: 37 reviews	i have an E5/E6 ECU so by unplugging it, the ECU will reset? __________________ YES, DORKIDORI IS MAKING NEW SHIRTS! CLICK THE BANNER! ADD DORKIDORI ON FACEBOOK! CLICK HERE! Bought something from me??? POST A REVIEW HERE!!!

07-17-2012, 08:45 PM	#17
cotbu Nissanaholic! Join Date: Sep 2005 Location: DE Posts: 2,122 Trader Rating: (3) Feedback Score: 3 reviews	No, the ecu will just run what the map tells it too! You might be close to stoich or far from either direction, but no correction from the 02 sensor, all mapping! Also no new learning, you could clear the long and short term trims and I know most of the time the ecu will run lean for a short period. not really hear nor there! __________________ LoverTechnologies "Half Broken Things!"

07-17-2012, 08:54 PM	#18
blessedhellrider Zilvia Member Join Date: Jan 2012 Location: tampaish Age: 31 Posts: 244 Trader Rating: (0) Feedback Score: 0 reviews	AEM's UEGO O2 Sensor Test - How to check to see if your aftermarket O2 sensor is bad - YouTube

03-20-2013, 10:07 PM	#19
xMOAR LOW S13x Join Date: Sep 2012 Location: medford oregon Age: 18 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	Does your sr kinda hickup when you drive it and seems way underpowred.

03-21-2013, 10:43 AM	#20
ultimateirving Zilvia Addict Join Date: Nov 2010 Location: arizona Age: 25 Posts: 667 Trader Rating: (0) Feedback Score: 0 reviews	Listen man, i haev same ecu and had issues with my o2 sensor not working. Sooo i cut the signal wire that tells the ecu how much voltage the o2 unit sees, i wired that directly to the o2 input on the ECU. I ran my own wire and from then on i was able to see the o2 voltage in consult.. __________________ Sr20det-e85 - 2871r - Ksport coilovers.

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