Looking for advice.

Discussion in 'F/I Mods & Tuning' started by joshxrmora, Feb 19, 2020.

  1. hapamulan

    hapamulan New Member

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    I've had the same thing happen with my truck regularly over the 5 years that I have owned it. Mentioned the issue to multiple mechanics who seems to think it was a non issue and since I could never replicate the "issue" for them it didn't seem like something they were keen to troubleshoot.

    Anyone else have some insight on why it's happening and whether I need to be looking further into it.
     
  2. joshxrmora

    joshxrmora Member

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    My buddy, who's much smarter than me I must add, tells me he thinks its the ECM. Not sure if that means bad pins, bad code, bad wires, Bad Re-flash. I just don't know. I will be posting what we find when we dive into this ECM issue, maybe i'll have an answer then.
     
  3. hapamulan

    hapamulan New Member

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    Forgive my ignorance...I'm supercharged so do I have an intercooler pump?
     
  4. o0opackersfano0o

    o0opackersfano0o Active Member

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    It kicks on cuz it’s on the same circuit as ur Evap system. It runs a self check about 4-5 hours after you shut your truck off.
     
  5. NHXRUNNER

    NHXRUNNER "New Hampster"
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    Yup, like Tony said, that's normal. The same thing will happen if you use the "add-a-fuse" option for the "fog light mod". If you leave the button on your fogs will come on in the same interval.
     
    blu xr likes this.
  6. joshxrmora

    joshxrmora Member

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    thanks NH, good to know.
     
  7. autobodyX

    autobodyX Active Member

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    The pump running on its own for a short time every so often is normal.
    The ribbon seal under the supper charger is my guess as the source of your lean condition and misfires.
     
  8. Blue10XR

    Blue10XR Member

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    Any updates? I'm curious to know what the smoking gun was......
     
  9. joshxrmora

    joshxrmora Member

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    so no kidding just found the issue last week. 1 of the Cats was clogged up. we punched them all out, welded them back up and the truck runs fine, although it sound a bit throatier now.
     
    blu xr and mejbro like this.
  10. blu xr

    blu xr Member

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    congrats on finding the issue...

    this should help others in the future
     

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