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Howell Odd Fire V6 Fuel Injection Kit Install

Discussion in 'Early CJ5 and CJ6 Tech' started by Norcal69, Jul 29, 2020.

  1. Jun 30, 2021
    Norcal69

    Norcal69 Out of the box thinker 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Northern California
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    I am very happy with the results. Since installing the new chip and crank sensor I have been driving the jeep almost daily. I have only had one issue. I am not sure what caused it but the fuel pump lost its prime from the rear tank. No biggie.... I switched to the front tank, which gravity feeds, and fired the jeep up. After running for a minute I switched back to the rear tank and everything has been fine since.
     
    givemethewillys likes this.
  2. Jul 19, 2021
    Norcal69

    Norcal69 Out of the box thinker 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Northern California
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    Just a small update.
    We got home last week from the forum Rubicon run.
    The only note I have is the initial startup at 7,700' elevation. I live at 500' elevation and trailered the jeep up to 7,700' where I fired it up from cold. I had to set the hand throttle up just a little bit to get it to idle decent until the thermostat opened. After a couple key cycles, (drive to get lunch, drive to gas station) the jeep began to run just as well as it did in the valley.
    I think that the ECM was a bit shocked by the sudden elevation change upon startup and needed to get into closed loop to make a program adjustment.
    3 hard days of wheeling and never a hiccup out of the TBI! I only used 10.5 gal of gas from Meyers, Ca... out to Loon Lake..... through the Rubicon and back on the trailer at Barker Pass.
     
  3. Jul 20, 2021
    Wmi68CJ5

    Wmi68CJ5 Let the Sun Shine! 2020 Sponsor

    Twin Lake MI
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  4. Oct 10, 2021
    Norcal69

    Norcal69 Out of the box thinker 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Northern California
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    Small update…. The throttle body injector noise and whistle was a bit annoying at crawl speeds. I picked up a stock air cleaner housing at pick n pull yesterday. 1990 s10 blazer with 4.3 v6. Quieted things down quite a bit. I have some more plans for this, but I’m happy so far!

    15C72B05-DE4B-4CDD-B3BD-FA7941C3E7A9.jpeg

    F51FD351-DDFA-4F12-8E76-1E70D637E06E.jpeg
     
    truckee4x4 and Fireball like this.
  5. Oct 10, 2021
    truckee4x4

    truckee4x4 Grant Kaye 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Truckee CA
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    What did you have on there before?
     
  6. Oct 11, 2021
    45es

    45es Member 2021 Sponsor 2020 Sponsor

    Naches, WA
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    Kyle, you may be able to eliminate some of that noise or whistle by making a slight throttle screw adjustment either in or out and then doing another IAC relearn. I don't know what you IAC count is at idle but there is usually some room for slight adjustments and the ECM will correct the engine speed to the programed idle speed. The whistle is coming from the air passing through the plates.
     
  7. Oct 11, 2021
    Norcal69

    Norcal69 Out of the box thinker 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    I was running an open element before. I Doubt there were any noticeable HP gains from it.

    [​IMG]
     
  8. Oct 11, 2021
    Norcal69

    Norcal69 Out of the box thinker 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    I am going to try that again, in the past every time I attempted to do that I ended up with too high of idle. Hopefully now that the system is operating properly I will have different results.
    I have to say.....The system is working so well now I hate to mess with it.
     
  9. Oct 11, 2021
    45es

    45es Member 2021 Sponsor 2020 Sponsor

    Naches, WA
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    You might try doing the changes incrementally. For example, make a small idle speed adjustment (note how much you change the screw position) without doing the IAC relearn. Note the changes in the engine operation. Did the noise change for example. If things have improved don't do anything else. Over time using the jeep, the IAC will itself do a relearn if the parameters of operation call for it. If you don't like the set screw change, just return it to it's original set point.
     
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