1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Howell Odd Fire V6 Fuel Injection Kit Install

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

  1. Sep 9, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    After reading Scott's thread about changing his intake gaskets to solve an unstable idle issue, I broke down and threw a set of intake gaskets in it.
    I could not directly find any leaks. And the gaskets made no improvement in idle. At least its an easy job on a Buick.....
    :(
     
  2. Sep 17, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    Small update.....
    I should have a replacement tach filter tomorrow or Monday. I called and explained the bouncing rpm signal to Troy from Howell.
    He gave me a series of electrical tests to preform. The tach filter failed those tests.
    When I asked what would cause the tach filter to fail he told me it could either the Petronix damaged it.... or my HEI has an issue. :shrug:
    Troy is not a fan of the Petronix setups...... I told him that he should tell Matt (owner of Howell) that he just bought me a tach filter..... :D
     
  3. Sep 19, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    I installed the new tach filter after work yesterday. The jeep fired right up and high idled smooth (cold start).
    As soon as the idle dropped down it started to idle funny. Check engine light came on with a MAP sensor code and a rich exhaust code. I had been doing various electrical and injector pulse tests prior to installing the new filter so I disconnected the battery to clear them. After connecting the battery I fired the jeep up and it idled pretty darn good. Not perfect but just about acceptable.

    As I closed the hood my phone started exploding. One of my dads neighbors shot a pig on their property (back pasture) but it escaped into ranch land and they couldn't bear the thought of it suffering.... :rolleyes: "Bay area transplants"
    I loaded up the dog, rifle and headed out in the jeep to recover the critter. We intersected the pigs trail perpendicularly and the dog instantly picked up on blood. I have no idea what has gotten into my dog lately but she took off running full speed down the trail in the direction that the pig went.... this left me no choice but to run that direction as well. Out through the pasture, over the fence, down a hill, through oak roughs, across dry creek bed and up a big hill on the other side stood the pig just below the crest. My dog was about 100 yds from the pig but on its trail and closing fast. Not wanting my dog to interact with a wounded pig.... or have to chase the pig once it crested the hill I decided I needed to take a shot. Taking a knee in the dry creek bed I cracked a round off. Don't know what happened there but the pig did a 180 and acted startled but un-hit. Now my dog was at 50 yds and closing with the pig was facing her direction. Estimating the yardage @ 250-275 but treating it like it was 200 due to the uphill angle...... I told my self to calm down and take another shot. The shot felt good and I heard the bullet impact the pig as dirt/dust flew off him. He fell and was kicking as my dog arrived, ran a wide circle around the pig before sitting down and looking back my direction as if to say "I found it."
    Relieved that I was able to avoid a wounded pig/dog encounter I walked back to the pasture to get the jeep before driving it up the hill to get the pig.
    Turns out the neighbor shot the pig in the jaw...... maybe thats why they specifically said they didnt want it to suffer? :shrug: They must have know they had no business shooting a pig..... :crazy:

    [​IMG]


    Back to the fuel injection.......

    I was not even a mile down the road after clearing the code when the check engine light came on again. I continued on to deal with the pig and checked it when I got back home. Code 45 rich exhaust......o_O.... I could have guessed it by the smell.
    Before changing the tach filter I had a constant lean problem..... now it's too rich......
    My guess is that the poorly filter signal was causing the computer to not feed enough fuel...which I increased fuel pressure to compensate for. Now that the computer is receiving the proper signals the increased pressure is supplying too much fuel. Perhaps the new prom chip that I received, but have not installed, will not be necessary after all.
    It would appear that the tach filter was damaged some how by the petronix coil..... and I have been fighting that all along. This is what Troy from Howell is thinking.
    Next step will be to hook up the scanner to see what the Block Learn/Integrator numbers are and lower fuel pressure accordingly.
     
    Twin2, Rich M., 47v6 and 1 other person like this.
  4. Sep 19, 2020
    Twin2

    Twin2 not him 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Virginia Beach, VA
    Joined:
    Apr 28, 2011
    Messages:
    5,407
    well did you keep the pig
     
  5. Sep 19, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    I gave it to a readily accepting family.....
     
    Twin2 likes this.
  6. Sep 19, 2020
    scott milliner

    scott milliner Master Fabricator

    Seattle Wa.
    Joined:
    Dec 17, 2002
    Messages:
    2,361
    Turned out that, Yes. It needed a new gasket. It was old. The real problem turned out to be a bad Throttle Position Sensor.
     
  7. Sep 20, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    I hooked the scanner up and took a look at the block learn and integrator numbers. Both were in the low 100’s at idle. Explains the rich condition....
    I lowered the fuel pressure to 12 but the numbers were a tick too lean..... upped it to 13 and everything looks good.
    We took the Jeep out to run errands today... 60 miles or so total. I’m pretty happy with how it runs.
     
  8. Sep 20, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    Here it is..... I still need to button up the spark plug wires and TBI harness.

     
    47v6, Jw60, Rich M. and 1 other person like this.
  9. Sep 20, 2020
    Jw60

    Jw60 Sitting up n buckled down. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
    Joined:
    Apr 8, 2008
    Messages:
    4,716
    Glad to hear it's doing good!
    (y)
     
  10. Sep 21, 2020
    Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Pullman, WA
    Joined:
    Feb 9, 2018
    Messages:
    5,625
    Nice job following this through to completion. It sounds like if the tach filter hadn't gotten damaged it would be a near bolt-on.
     
  11. Sep 21, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    I think it would be a bolt on project.
     
    Fireball likes this.
  12. Sep 21, 2020
    Wmi68CJ5

    Wmi68CJ5 Let the Sun Shine!

    Twin Lake MI
    Joined:
    Aug 10, 2006
    Messages:
    739
    So with out going back through all the posts the pertronix killed the tach filter? So if I end up buying this kit I need to swap in an HEI distributor and get rid of my pertronix?
    Thanks Todd
     
  13. Sep 21, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    That would be Troy's opinion at Howell. When I asked him how the Pertronix could have killed the filter, he couldn't say...... I think his quote was...."they are just wierd... um they do wierd shi*..... HEI will always be better".
    I really have no idea my self.... perhaps we need another guinea pig to try it...... Howell replaced my filter under the 90 day warranty.
     
  14. Sep 21, 2020
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
    Joined:
    Oct 25, 2006
    Messages:
    5,798
    Well, since this is a known issue with Pertonix, might have been the first thing to look at? I dunno? Maybe this is the first time they have seen this?
     
  15. Sep 21, 2020
    Wmi68CJ5

    Wmi68CJ5 Let the Sun Shine!

    Twin Lake MI
    Joined:
    Aug 10, 2006
    Messages:
    739
    So did Troy ask about your ignition first when all the troubles started?
     
  16. Sep 21, 2020
    Wmi68CJ5

    Wmi68CJ5 Let the Sun Shine!

    Twin Lake MI
    Joined:
    Aug 10, 2006
    Messages:
    739
    the issue is known by Howell how I wonder? other engines?
     
  17. Sep 21, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    When I ordered it the owner said as long as I didn't have points it would be fine.
    The first time I called for tech support Troy said I should get an HEI.
     
  18. Sep 21, 2020
    Jw60

    Jw60 Sitting up n buckled down. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
    Joined:
    Apr 8, 2008
    Messages:
    4,716
    For those unfamiliar the hei has a dedicated tach output at the distributor where the pertronix replaces points and you still wire the tach to the coil. There could very well be a issue with it not talking the sweet nothings as the pcm likes.
     
  19. Sep 21, 2020
    Wmi68CJ5

    Wmi68CJ5 Let the Sun Shine!

    Twin Lake MI
    Joined:
    Aug 10, 2006
    Messages:
    739
    so you could be getting crazy signals possibly from the coil?
     
  20. Sep 26, 2020
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,548
    That is the thought. Or possible that the old school coil setup is prone to voltage spikes?
     
New Posts