P0138 and P0607 codes

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Thread: P0138 and P0607 codes

  1. #1
    Veteran Member socaliallstar82's Avatar
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    Default P0138 and P0607 codes

    So my CEL came on saturday morning. No limp mode, everything runs fine. I Figured it was probably nothing big. Came up these codes. I havent gone under the truck yet, but The P0138 code is a O2 sensor code, so Im wondering if the URD O2 sim went bad. The other code is an ECM/PCM failure which doesnt make sense since no limp mode, and the truck runs fine.

    Any one with DT long tubes have this problem?


    5.7 Tundra RCSB- Bolt ons
    14.268 @ 96.15mph "in 3000+ DA"
    358HP/369TQ

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    Veteran Member StevJ's Avatar
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    Default Re: P0138 and P0607 codes

    Something I found
    Quote Originally Posted by ToyotaTechnition View Post
    Most common failure is o2 sensor internal resistance is to high which in return can cause false p0607 ecm failure.
    Steve
    Last edited by StevJ; 07-06-2011 at 02:35 PM.
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    Veteran Member socaliallstar82's Avatar
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    Default Re: P0138 and P0607 codes

    Thanks man! Appreciate it.


    5.7 Tundra RCSB- Bolt ons
    14.268 @ 96.15mph "in 3000+ DA"
    358HP/369TQ

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    Veteran Member socaliallstar82's Avatar
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    Default Re: P0138 and P0607 codes

    So that read the codes for me also cleared the CEL light. Sure enough it came back the next day. 2 days later, it went away by itself. No codes, no CEL. Anyone have this happen? By now Im not too concerned, but just find it odd.


    5.7 Tundra RCSB- Bolt ons
    14.268 @ 96.15mph "in 3000+ DA"
    358HP/369TQ

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