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RX-300

Discussion in 'General Automotive' started by C-Rok275, Feb 16, 2022.

  1. Feb 16, 2022 at 9:32 AM
    #1
    C-Rok275

    #1
    C-Rok275 [OP] Well-Known Member

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    6112/5160s with Icon stage 2 leaf’s.
    Any RX300 experts here? I picked up an 03 and it’s running rich. My initial thought is a VVT problem so I’m going to put in new VVT solenoids and do a tune-up.
     
    C-Rok275, Feb 16, 2022
    #1
    PennSilverTaco likes this.
  2. Feb 16, 2022 at 9:38 AM
    #2
    PennSilverTaco

    #2
    PennSilverTaco Encyclopedia of useless information...

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    PennSilverTaco, Feb 16, 2022
    #2
    C-Rok275[OP] likes this.
  3. Feb 16, 2022 at 3:14 PM
    #3
    Plain Jane Taco

    #3
    Plain Jane Taco Well-Known Member

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    The 300 has the 1MZ engine, common to many FWD Toyota products of that time. Your RX is mechanically the same as Highlander. So I would post up a question here.

    https://www.toyotanation.com/forums/highlander-1st-generation-2001-2007.83/
     
    Plain Jane Taco, Feb 16, 2022
    #3
    PennSilverTaco likes this.
  4. Feb 16, 2022 at 7:15 PM
    #4
    C-Rok275

    #4
    C-Rok275 [OP] Well-Known Member

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    6112/5160s with Icon stage 2 leaf’s.
    C-Rok275, Feb 16, 2022
    #4
    Plain Jane Taco[QUOTED] and PennSilverTaco like this.
  5. Feb 16, 2022 at 7:18 PM
    #5
    YotaGangYotaGang

    #5
    YotaGangYotaGang PreRunners are wannabe 4x4’s

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    YotaGangYotaGang, Feb 16, 2022
    #5
    PennSilverTaco likes this.
  6. Feb 16, 2022 at 7:23 PM
    #6
    Superdave1.0

    #6
    Superdave1.0 Grandma Dave

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    Running rich? Maybe spark plugs or 02 sensors. Could also be a vacuum leak. Hard to say without a code.
     
    Superdave1.0, Feb 16, 2022
    #6
  7. Feb 17, 2022 at 3:28 AM
    #7
    C-Rok275

    #7
    C-Rok275 [OP] Well-Known Member

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    2017 TRD Pro
    6112/5160s with Icon stage 2 leaf’s.
    Thanks. I’ll add o2 sensors to my list. I got the car for cheap and it has 260k on the odometer so I don’t mind throwing some parts at it to see what happens.
     
    C-Rok275, Feb 17, 2022
    #7
  8. Feb 17, 2022 at 3:54 AM
    #8
    Clearwater Bill

    #8
    Clearwater Bill Never answer an anonymous letter

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    A few OE parts from fancy trucks
    How do you know it's running rich?

    Driveability issues? Codes set or pending? Guessing based on a sooty tailpipe?
     
    Clearwater Bill, Feb 17, 2022
    #8
  9. Feb 17, 2022 at 5:49 PM
    #9
    C-Rok275

    #9
    C-Rok275 [OP] Well-Known Member

    Joined:
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    2017 TRD Pro
    6112/5160s with Icon stage 2 leaf’s.
    Exceptionally poor mileage and that funky exhaust smell. I looked at one spark plug, barely any electrode left so I put it back in pending the new ones coming tomorrow.
     
    C-Rok275, Feb 17, 2022
    #9

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