Check engine just lit-up

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by kensiko, Mar 28, 2015.

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  1. kensiko

    kensiko Member

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    Before plugging it
     
    #21 kensiko, Apr 9, 2015
  2. cyclopathic

    cyclopathic Senior Member

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    #22 cyclopathic, Apr 9, 2015
  3. kensiko

    kensiko Member

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    Thanks. Will this works ? ELM327 Super OBD II Bluetooth Auto Car Scanner for Android Torque elm327 OBD2
     
    #23 kensiko, Apr 9, 2015
  4. bisco

    bisco cookie crumbler

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    12.6 is low for a new battery before it is installed. you should smart charge it to 13 volts.
     
    #24 bisco, Apr 9, 2015
  5. cyclopathic

    cyclopathic Senior Member

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    Most likely it will (if you find reviews, you'd know better). What I found biggest issue isn't if it works, it is how many tries it'll take to link it. For $4.4 you have not much to loose. BTW battery voltage is available on OBDII you can plot it w/o getting your hands dirty
    UPDATE: found this discussion online
    FORScan forum • View topic - Attention, cheat: ELM327 v2.1
    Looks like there are some issues with v2.1.

    I have v1.5 (bigger one) and it works OK except it is a b!tch to link up sometime
     
    #25 cyclopathic, Apr 9, 2015
    Last edited: Apr 10, 2015
  6. Mendel Leisk

    Mendel Leisk Senior Member

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    You'll probably be fine, but it's probably a good idea to hook a new battery up to an appropriate smart charger, let it run 'till it's happy with it. Nothing stopping you from doing a charging session post-install, wouldn't hurt. You want a smart charger in the 3~4 amp range.
     
    #26 Mendel Leisk, Apr 9, 2015
  7. kensiko

    kensiko Member

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    I have one. Will do on the first occasion.
     
    #27 kensiko, Apr 10, 2015
  8. kensiko

    kensiko Member

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    Issue came back after 1 or 2 months.

    I rarely use the car since I have a Leaf. It is in fact for sale as owning 2 cars doesn't make much sense since I work from home.

    So I called Toyota, we're talking about 500 CAD$. Their mechanics suspect a faulty oxygen sensor. I looked for replacing it myself with my father. He just took the car yesterday and removed the sensor at the manifold. He measured the resistance and it is about 14 ohms where it should be 1.8 to 3.4 ohms. Great !

    So I shopped for a new sensor and discovered that there are 2 sensors, one upstream the catalytic converter and the other, downstream. Am I right to replace the one upstream ?
     
    #28 kensiko, Aug 14, 2015
  9. cyclopathic

    cyclopathic Senior Member

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    what was the error code again?
     
    #29 cyclopathic, Aug 14, 2015
  10. kensiko

    kensiko Member

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    P2a00
     
    #30 kensiko, Aug 14, 2015
  11. cyclopathic

    cyclopathic Senior Member

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    P2a00 Toyota A/F Sensor Circuit Slow Response Bank 1 Sensor 1 OBDII Engine Light Trouble Code | Engine-Codes.com
    Check that battery has a good ground contact, no terminal corrosion and it is charged. This may be causing problem too.

    But this is 1st sensor (on exhaust manifold) it is usually ~$30s on RockAuto.com You will need a special socket to remove it, but you can get it on loan in AdvanceAutoparts, Autozone, etc. I'd recommend Denso they a little bit more but worth it.
     
    #31 cyclopathic, Aug 14, 2015
  12. kensiko

    kensiko Member

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    I found it was more than 100$ for the upstream one. My father removed it, he didn't tell me anything about a special tool. I'll need to speak with him.
     
    #32 kensiko, Aug 14, 2015
  13. Mendel Leisk

    Mendel Leisk Senior Member

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    Canadian prices?
     
    #33 Mendel Leisk, Aug 14, 2015
  14. kensiko

    kensiko Member

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    No US.

     
    #34 kensiko, Aug 14, 2015
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  15. cyclopathic

    cyclopathic Senior Member

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    Apologies. Just checked RockAuto and it is listed there for $109. Cheapest one is $93. The ones I've bought for other cars were fraction of that.

    Did not know they were so expensive for Gen3. Part # DENSO 234-9090, maybe you'll find it cheaper
     
    #35 cyclopathic, Aug 14, 2015
    Last edited: Aug 14, 2015
  16. kensiko

    kensiko Member

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    Just spoke with my father. He says there are 2 catalytic converters and he removed the sensor before those, but it was not that much close to the motor. He will have a second look once he comes here.
     
    #36 kensiko, Aug 17, 2015
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