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    Thread: O2 Sensor code - P0053 Heater resistance Bank 1 Sensor 1

    1. #21
      Should I keep it?
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      Good day everyone.

      A week ago I changed the injectors gaskets and error code P0133 gone.

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      However P0053 was still present. So I went to the store and explained the issue: the new sensor has resistance of 5 Ohm, the old from the car has 10..11 Ohm. They agree to exchange. Next day I got a "new" o2. The sensor has some dents and scratches on the nut and missed anti seize grease but the protective cap was shiny (maybe they put it on the car for test before???). After I put it on the car the P0053 gone right away. Had pending P0171 for a day and next day it gone too.

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      Last edited by Enjoyneering; 10-02-2016 at 08:14 PM.

    2. #22
      Should I keep it?
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      Now I have another problem - on the highway LTFT sits around 7..8% +- 2..3% STFT.

      I get nice 0% long term fuel trim +-5% short term fuel trim, during the warm up and idle. As a prove see the picture below. On the screenshot the engine still warming up (temperature is 44C and did't reach 75C, RPM is still too high 879, should be around 750). MAP is in the range - 35kPa, and MAF is ok too - 3.6 g/sec. It means MAF and MAP work fine.

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      Since I figured out my MAF and MAP is OK it could be another vacuum leak or fuel pump is dying. But I my LTFT is perfect during the idle - it means no leaks. I removed the pump and found that my pre-pump filter is clogged and dirty and fuel filter is still OK.

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      For some reason GM and aftermarket don't sell pre-pump & fuel filter separately. You have to buy whole assembly for 250-320 CAD. Dose anybody know where I can buy pre-pump filter? Thank you in advance.
      Last edited by Enjoyneering; 10-02-2016 at 06:14 PM.

    3. #23
      I'll keep it and add a turbo
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      Check rockauto.com , if they sell to Canada ?

      Or eBay ?

      God bless
      Wyr

    4. #24
      Should I keep it?
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      I've checked rockauto and ebay - only
      fuel pump assembly for ~200 cad.

    5. #25
      I'll keep it and add a turbo
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      How much is it at your local parts srores ?

      God bless
      Wyr

    6. #26
      Should I keep it?
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      Local price is ~200 cad for the pump assembly. A year ago I got Kia Rio5 pre-pump filter for 15CAD and fuel filter for 35CAD. Feel the difference.
      Last edited by Enjoyneering; 10-02-2016 at 11:50 PM.

    7. #27
      I'll keep it and add a turbo
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      As a last resort , check GM ?

      Please refresh my memory . How many miles on the car ?

      God bless
      Wyr

      PS Try contacting the filter manufacturers ? Google them and see if they have toll free numbers or email addresses for customer service .

    8. #28
      Should I keep it?
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      70 000 miles.

      Do you know the filter manufacture?

    9. #29
      I'll keep it and add a turbo
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      Sorry , no .

      The car is made in Korea but had no look googling Korean fuel pre filter .

      Try the American brands like Fram , Purilator , Wix , etc. .

      God bless
      Wyr

    10. #30
      Should I keep it?
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      Thank you, but I still can't understand why GM doesn't sell pre-pump and fuel filter. Almost all makers sell it separately and suggest to replace fuel filter every 60000km...90000km.





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