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o2 sensor replacement, AC Delco or Denso?

This is a discussion on o2 sensor replacement, AC Delco or Denso? within the General Help forums, part of the LSx Technical Help Section category; I am going to replace my factory o2's on my 94 Z28 A4. AC Delco's or Denso's (Made In Japan) ...

  1. #1
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    Smile o2 sensor replacement, AC Delco or Denso?

    I am going to replace my factory o2's on my 94 Z28 A4.

    AC Delco's or Denso's (Made In Japan) which I think is a great things.

    Any feedback would help.

    Thanks.

  2. #2
    Sarge for AAG Emperor hutch1999's Avatar
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    is there a price diff? I went with AC when I replaced

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    Senior Member TransAm11973's Avatar
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    i went ac as well

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    Smile

    yes, AC's are about $130 ea, and Denso's are $49 ea (but I get a good deal on the denso's from a local part store) And of course both brands are the 4 wire heated sensor's. The AC's have slots in the sensor tip, and the Denso's have holes in the sensor tip.
    Personally I think the Denso's look alot more quality made. (but that's a Japan made part for you.)

  5. #5
    Sarge for AAG Emperor hutch1999's Avatar
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    I know my ac's came with a year warranty which I used on one, what do the densos come with?

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    Did you mean you had to use the 1 yr warrany on one?

    The Denso's also have a 1 yr warranty too!

  7. #7
    Sarge for AAG Emperor hutch1999's Avatar
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    yea, my fault I need to have the car tuned and I didnt use enough diaelectric grease putting them on like a dumbass

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    ha well you sound like me learned the hard way?

  9. #9
    Sarge for AAG Emperor hutch1999's Avatar
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    yea, I didnt have to pay anything because of the warranty tho

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    ya that's cool. Hey you woulden't happen to have any LT's for sale for my 94 Z?
    Also do you know about how much rwhp a set of hooker LT's would add? Of course with a k/n cai, granitelli maf, ceramic elbow, and 58mm TB with the manifold ported to match the 58mm. Also had a hollow 3 inch pipe for the cat & mandrel bent 3 inch cat back with flowmaster.

  11. #11
    Sarge for AAG Emperor hutch1999's Avatar
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    I personally dont have anything, just do some searching on the site.

    Heres a lt1 thread where he has headers

    lt1+headers+ tune

  12. #12
    The Generals Finest Deviant LS1's Avatar
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    Denso's are great replacement sensors and have a higher tolerance for leaded race gas also. Go with OEM if you can spring the cash for them. For the price difference I would replace mine with a Denso or an NTK sensor.
    Last edited by Deviant LS1; 12-19-2008 at 09:37 PM.

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    I would go with with Denso and replace them more often, O2 sensors are kind of like plugs and wires they might not be bad but when you put on a new set you can tell the difference. Let me know how your car runs with the new sensors.

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    Junior Member slp1122's Avatar
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    i know with long tube headers, Bosch O2's are really popular because they are longer (designed for vettes). the part number for them is 13111.

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by My94ZZZ View Post
    yes, AC's are about $130 ea, and Denso's are $49 ea (but I get a good deal on the denso's from a local part store) And of course both brands are the 4 wire heated sensor's. The AC's have slots in the sensor tip, and the Denso's have holes in the sensor tip.
    Personally I think the Denso's look alot more quality made. (but that's a Japan made part for you.)
    Last edited by 9t8z28; 12-24-2008 at 08:40 AM.

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    Navy Blue Metallic SS 01NBMSS's Avatar
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    I have replaced mine on my 96 pickup and went with bosch and they work great no complaints.

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    The Bandit Wesman's Avatar
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    Quote Originally Posted by 9t8z28 View Post
    +1 lol

    I've seen more cheap garbage parts come out of Asian than anywhere else.

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    Thumbs up

    Yes I agree but what part of asia. Lots of junk comes from China, Twain, etc. Most all things made in Japan are the highest quailty parts you can find. Why do you think Honda cars are always rated #1? I am not saying I love rice grinders because i don't. I feel bad for those poor hondas that get the crap beat out them. I love CAMAROS no doubt about it! But my daily drivers are Hondas and Toyotas.

    P.S. Thanks for all the feedback on the o2 senser ?. I went with the Denso sensors. I haven't drove the car more than a few miles since the install of them. Due to bad winter weather in Utah.
    Thanks again,

    Scott...





    Quote Originally Posted by Wesman View Post
    +1 lol

    I've seen more cheap garbage parts come out of Asian than anywhere else.

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by My94ZZZ View Post
    Yes I agree but what part of asia. Lots of junk comes from China, Twain, etc. Most all things made in Japan are the highest quailty parts you can find. Why do you think Honda cars are always rated #1? I am not saying I love rice grinders because i don't. I feel bad for those poor hondas that get the crap beat out them. I love CAMAROS no doubt about it! But my daily drivers are Hondas and Toyotas.

    P.S. Thanks for all the feedback on the o2 senser ?. I went with the Denso sensors. I haven't drove the car more than a few miles since the install of them. Due to bad winter weather in Utah.
    Thanks again,

    Scott...
    Hmm, O.K.?

    One of my Denso's just took a shit and it was only 1 months old!

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    Well I never said they never go bad or you will never get on that takes a crap in a month. You get that with any part manufacter.







    Quote Originally Posted by 9t8z28 View Post
    Hmm, O.K.?

    One of my Denso's just took a shit and it was only 1 months old!

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