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Thread: 2005 LLY No SRT's are enabled? Wont Pass SMOG California

  1. #11
    Senior Member djv86's Avatar
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    And the one we messed with was a 04 lly. I'm not familiar enough about the lly to argue your post about what monitors it should have. I was just saying double check it's being smogged as a "federal" truck being I saw 2-3 RPOs in the vehicle build to designate it's a federal truck. Either way curious to hear the final outcome


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  2. #12
    Lifetime Member LB72004's Avatar
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    Good point. Didn't think about the smog machine not even communicating. Wonder why the efilive software doesn't show anything ether. Maybe the same issue? Wrong os loaded?
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  3. #13
    Senior Member djv86's Avatar
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    This truck we had here was never tuned ever and the wrong selection was made on the machine and it didn't like it. But smog tech selected California when it was a federal truck


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  4. #14
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    Quote Originally Posted by blades11b View Post
    Hoping to get some help regarding an issue im having with an LLY. I typically get quite a few trucks in my shop (in southern california) that wont pass smog because they have had an after market tuner used on them and even though they were set back to "stock" the readiness monitors still wouldn't enable. Heres the weird issue im having with a 2005 LLY. ive flashed the vehicle with GM's SPS software back to stock and still when I look at it the readiness monitors are almost all set to "not supported" does anyone have an idea? attached is the pictures of what it looks like and the OS
    Try flashing the OS and CAL to the PCM w/EFI Live. No telling which OS was on there w/those tuners.
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