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| Oxygen Sensor; Upstream | |
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| Tweet Topic Started: Nov 3 2010, 08:51 PM (4,641 Views) | |
| cjohns79ut | Nov 3 2010, 08:51 PM Post #1 |
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New Member
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Oxygen Sensor upstream NTK (NGK) Part # W0133-1630496 compatible with 96 Metro LSI or should I get the Bosch 13500? The NTK is a lot cheaper! |
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| mwebb | Nov 3 2010, 10:53 PM Post #2 |
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FOG
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i have an NTK 02 sensor in the front bank 1 sensor 1 i do not remember the part # but it is the direct fit OEM type no matter the price i prefer NTK i have had a high percentage of Bosch 02 sensor failures , NEW . of course that may have been because of careless handling during transport between Bosch and ....... if you drop an 02 sensor 6" to concrete , there is a real good chance you will break the thimble inside , which will kill the 02 sensor deader than dog poop . |
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| cjohns79ut | Nov 4 2010, 10:22 AM Post #3 |
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New Member
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My light is on to replace oxygen sensor. The catalytic converter has been cut off the car. Is there any reason to replace the oxygen sensor that point? |
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| mwebb | Nov 4 2010, 10:23 PM Post #4 |
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FOG
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absolutely. the front 02 sensor is the final sensor that has control of fuel trim - STFT shifts in direct relationship to the front 02 sensor input , without proper front 02 sensor input ... the ECM will set a DTC and will go to OPEN LOOP fuel economy and performance will suffer . |
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| cjohns79ut | Nov 5 2010, 10:06 AM Post #5 |
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OK WELL I UNDERSTAND THAT IT NEEDS TO BE REPLACED. SHOULD I REPLACE THE CATALYTIC CONVERTER AS WELL OR DOES IT MATTER? |
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| mcmancuso | Nov 5 2010, 10:10 AM Post #6 |
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if you don't care about emissions, there's no reason to replace the catalytic, the rear O2 may throw a code for the catalytic not working though. You can also just wrap the rear O2 in foil and put it up behind the strut tower and that will keep it from giving a code. |
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| vikasintl | Aug 18 2011, 07:04 PM Post #7 |
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I don't have check engine light but FE is only 32 mpg and am wondering if O2 sensor is sluggish/slow...it's not bad enough to throw code but it can still affect the fuel economy ? is this possible or they just go bad and throw the code right away? |
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| obaja | Aug 18 2011, 07:14 PM Post #8 |
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Diesel Power
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I have the same question. Can they go bad slowly and not throw a code? I just failed smog test because of high nox |
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| dayle1960 | Aug 18 2011, 07:21 PM Post #9 |
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Fastest Hampster EVER
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Obaja, do you have a single wire or 4 wire O2 sensor? If you have the single wire O2 sensor, I would recommend just replacing it. The price of a single wire O2 sensor is like <$20. If I had a wonky emmissions test I would just bite the bullett and replace the O2 sensor. Cheap, easy insurance for your next test. As far as the O2 sensor dieing slowly? I would think it is either alive or dead. Plus if it has over 100K on it, it might be tired and will die eventually. One day it will work perfectly and the next you will be scratching your head thinking " What the heck, it worked fine yesterday?" If you're throwing NOX on a test, I wonder if you might have an EGR problem. Is your EGR passageway through the head clean? How is your cat? Smack it with your hand and see if it rattles like broken china. Yes, broken china? then your cat is dead. How this helps. |
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| Woodie | Aug 19 2011, 04:42 AM Post #10 |
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O2 sensor will not effect NOx, non working EGR or advanced timing will. Obaja, you've listed 14° advance in your signature, is that still there? Turn it back to 5° and limp down to the testing station, good chance you'll pass. |
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| obaja | Aug 19 2011, 07:47 AM Post #11 |
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Diesel Power
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I have a 4 wire o2 sensor. I looked at my smog in 2008,2009,and now,2011 and noticed the nox gradualy rising. The 4 wire is about 80 bucks to buy. My egr is perfectly clean as I just did a rebuild and when I rev the engine I see the egr move very slightly. The ignition timing, cam, and gear are all back to stock for this smog test so we're all good there. Pcv valve working good too. Cat could be clogged but does not rattle when hit. Also checked vacuum and vacuum returns to normal quickly after revved which indicates a free flowing cat. I thought the cat was for hydrocarbons anyways? |
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| dayle1960 | Aug 19 2011, 01:55 PM Post #12 |
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Fastest Hampster EVER
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Must suck loving in a state that inspects "up the tailpipe condition ". Move to Arkansas where there is no such thing as a car inspection Sorry Obaja, the only other thong I can tell you is to replace the O2 sensor. Everythong else is out of my league. Keep asking questions, though. |
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| obaja | Aug 19 2011, 11:59 PM Post #13 |
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Diesel Power
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Ya tell me about it. Cali is the best state but the worst state at the same time. I just ordered an NTK o2 sensor (mwebbs favorite) and will do a pretest and see what the numbers turn out to be. I will report back here as soon as i have an answer.
Edited by obaja, Aug 19 2011, 11:59 PM.
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| obaja | Aug 29 2011, 09:36 PM Post #14 |
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Diesel Power
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Well the 02 helped and i passed. The nox number went down obviously and the hc and co went up a tad which was expected from reading other peoples stories of putting in a new o2 sensor. I'm thinking the next smog check i will need a cat. It's interesting watching the pretest on the computer screen. It has the nox, hc, and co all in live time and the numbers bounce up and down. Well he did the 15 mph roll and the nox were bouncing around really high up at 1200 and then slowly started coming down till it was around 600-700 which is passing. This took 15 seconds. Then when the nox came down the hc and co would go up and vice versa for about 10 seconds till they all stabilized at all passing levels. I then told the guy to smog it and it passed.
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| 98chevymetro | Oct 3 2015, 10:11 PM Post #15 |
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So my cel just came on p0136 and that's for the 2nd sensor. This came on over a year ago but I cleared it and haven't seen it since until today. I'm going to replace them both. I've had the car since 96k miles and now it's got 210k miles so I'm sure they're due. I'll probably do the EGR as well. Replaced it 100k ago but it's probably due also. My question is, I'm seeing a bunch of brands on rockauto. Says denso is the original manufacturer and it's about $38 for secondary and $46 for primary. Other brands are more. Acdelco is $192 for the primary. Does it make a difference which one I buy? |
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