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need to replace both o2 sensors on 2004 PT GT

 
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Old 12 Mar 2019, 12:08 am
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Default need to replace both o2 sensors on 2004 PT GT

checking to see if any of you can recommend a good set of O2 sensors for our 2004 PT turbo GT. I am going to replace both the upstream and downstream at the same time and located a set on Ebay :

https://www.ebay.com/itm/2x-O2-Oxyge...o/351730768461

The set on Ebay is a Kwiksen brand.

Wanted to see if any one has used this set or if you have a set that has worked well for you and is reasonably priced?

Thank you for your feedback before I order a set.
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Old 12 Mar 2019, 12:29 am
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Default Re: need to replace both o2 sensors on 2004 PT GT

I always choose NTK or BOSCH for 02 sensors. The come with a decent warranty and if your engine runs good they should last for the life of the vehicle.
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Old 12 Mar 2019, 06:13 am
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Default Re: need to replace both o2 sensors on 2004 PT GT

I agree. I always use NTK/NGK or Bosch and have never had any problems.

The ones you have linked to on ebay will be about half the cost of the name brands we like. Will they work? Probably but who knows how well or for how long.

That said, before you go off and buy a set, why are you changing them? For peace of mind because they are old? Are you concerned for the planet and want to limit your emissions and fuel use? Or, does your car have a problem, such as a check engine light, and the codes tell you the sensors need to be replaced?

Last edited by myckee; 12 Mar 2019 at 06:17 am.
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Old 12 Mar 2019, 04:24 pm
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Cool Re: need to replace both o2 sensors on 2004 PT GT

I wouldn't bother changing the downstream sensor, unless there is a fault code for it.
The upstream is the one that does most of the 'work'. I changed mine a while back and the car ran slightly better afterwards... They do wear out over time. I would also stick with a name brand part. Check out RockAuto...
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Old 12 Mar 2019, 09:14 pm
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Default Re: need to replace both o2 sensors on 2004 PT GT

Thanks to everyone that took a moment and shared your insight. I just got a check engine light yesterday and it was for the upstream and downstream O2 sensors. I had just run the car pretty hard on Sunday on the freeway where we have a 80mph speed limit so at times I was doing around 83 to 85mph and passing some fellow cruisers in our club or should I say just keeping ahead of them.

It was the first time in a long while I have had the old girl opened up like that so not surprised that after 15 years she needs some new O2's.

I will heed your wise advise and go with a major brand like Bosch. The ones on Ebay just appear to be a cheap Chinese knock off and who wants to replace them twice? I was just not familiar with that brand and thought I would check to see if anyone had used them before.
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Old 13 Mar 2019, 09:26 am
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Default Re: need to replace both o2 sensors on 2004 PT GT

Quote:
Originally Posted by GOLDNPT View Post
Thanks to everyone that took a moment and shared your insight. I just got a check engine light yesterday and it was for the upstream and downstream O2 sensors. I had just run the car pretty hard on Sunday on the freeway where we have a 80mph speed limit so at times I was doing around 83 to 85mph and passing some fellow cruisers in our club or should I say just keeping ahead of them.

It was the first time in a long while I have had the old girl opened up like that so not surprised that after 15 years she needs some new O2's.

I will heed your wise advise and go with a major brand like Bosch. The ones on Ebay just appear to be a cheap Chinese knock off and who wants to replace them twice? I was just not familiar with that brand and thought I would check to see if anyone had used them before.
Have you tried clearing the codes? Do they come back instantly? Well, you really might have two dead sensors that died at the exact same time, but you could find, maybe even probably will find, that the new sensors will not cure the problem. It's not money wasted since the originals are 15 years old and you likely would benefit from new ones.

If you replace them, and the codes do not go away, then you are dealing with a failed PCM. The O2 codes are one of the most common manifestations of the failed PCM, particularly on the 04 and up models. I believe the problem is with the extreme heat the PCM is subjected to. The PCM is only inches away from the red hot turbo and is subjected to extreme heating and cooling events, repeatedly, until the PCM circuitry just can't take it anymore and fails.

Well, hopefully that is not the case with yours, and you simply need new sensors. However, If you do find that you require a replacement PCM, I have a small business selling them and can give you a good deal on one.

Good luck and let us know what you find.
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Last edited by myckee; 13 Mar 2019 at 09:30 am.
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Old 13 Mar 2019, 10:39 pm
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Default Re: need to replace both o2 sensors on 2004 PT GT

You would not just change 2 spark plugs in your 4 cylinder engine, the same goes for H02 sensors. Change both at the same time.

As a rule I would use branded O2s or HO2's but to make a point I used the cheapest generic HO2's in my PT GT about 2 years ago and posted it. To date they have done the expected task at 6 bucks each as the high dollar name brand like NGK or BOSCH.

What can I say? Maybe I was lucky? Oh and they have at least a few dozen 1/4 mile drag racing passes and lots of spirited driving.
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