Recent content by Iso-baric

  1. I

    Irregular idle revving up and down VIDEO & Update!

    Any chance you've had the 42-pin connector at the PCM off recently? I agree it sounds like you are having a 5v issue - whether it be a pushed pin or wiring break. I'd grab a multimeter and ohm between pin 21 (+5 VREF) and the ICP sensor (at least in the diagram I have this is the last sensor in...
  2. I

    Heui Injection

    I had one of the first 100 made. It was dog shit. Leaked out the rear cover from the day I got it. Ironically my dog did actually shit on the honey badger hoodie given away with the first 100. The only time is his adult life he shit in the house. Guess he knew better than I did.
  3. I

    Irregular idle revving up and down VIDEO & Update!

    https://electrical-engineering-portal.com/digital-multimeter-testing-car-charging-system Test #3 and #4 towards the middle of the page.
  4. I

    Irregular idle revving up and down VIDEO & Update!

    Headlight flicker was a symptom in my case, not the cause. Root cause being dirty voltage output from the alternator due to a diode failure. Any sensor that uses a 5v reference can be effected by 'noise' in the 12v system - ICP/CPS/MAP/EBP etc. It takes <5min to do a diode test if you have...
  5. I

    Irregular idle revving up and down VIDEO & Update!

    Any chance your headlights are flickering in time with engine speed (slower at idle, faster as engine speed increases)? I had a similar issue recently. Started as a small hiccup at idle or at ICP less than 1300 psi. Progressively got worst until engine started hunting similar to yours at idle...
  6. I

    PSA Official FAQ

    Y'all are telling my CompD is still open for business? I just get a "Network Error (tcp_error)" every time I try and visit...Thought that they had gotten tired of paying for server space and scrubbed it.
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    PSA Official FAQ

    I was hanging around back in 2011-2012 (though under a different username that I've since forgotten the password for). Not an OG by any means. Was a kid back then struggling to pay my way through college, but it was fun to follow along with some of the epic builds and technical discussions...
  8. I

    tuner help

    Any of the MM V2 are Bully Dog GT units with hacked firmware and SW. Circa 2015 this was a low(er) risk proposition as H&S bought/licensed the HW and source code from Bully Dog for the original Mini Maxx. Never did it myself, but there were people brute forcing the H&S SW and tunes to the...
  9. I

    Tuning the 7.3 in current times

    TW tunes were my favorite before starting to write my own. He was not an easy person to get ahold of for revisions at times (understandable given the circumstances) but always came through. He wouldn't remember who I am but he is definitely one of the most standup individuals I've come across...
  10. I

    SXE education request

    How long has the setup been together? What compound is the clutch? SB DD clutches are extremely grabby, especially for the first few thousand miles. If it is a hybrid ceramic/organic or fully ceramic you will have even more. I find mine to be tolerable after a combination of break-in and...
  11. I

    1995 F350 CC Dually 4X4 PSD

    Did this end up selling?
  12. I

    CAT oil filter upgrade

    FWIW - I use CAT / Donaldson filters as much as makes sense. That being said, Motorcraft filters are extremely high quality. Part of the failure analysis training we run for our dealer network involves destructive analysis of CAT and competitive filters. OEM Motorcraft is across the board as...
  13. I

    Correct Coolant

    Both CAT ELC and ELI (same additive pack - glycol free) are NOAT coolants and compatible with aluminum. No issues mixing NOAT & OAT coolants, you just diminish the additional cavitation protection nitrites provide. I've always abided by the rule that you can use a NOAT/OAT coolant in place of...
  14. I

    2022 F250 Build/Mod/Spam Thread

    FWIW - I have a Fab Fours rear bumper on my truck. The first one showed up with the mounting brackets welded crooked and one side 1/2" higher than the other, which I didn't catch before fighting like a SOB to get body-lines correct (con). Documented the issue with some crude triangulation...
  15. I

    34-35" Studded Winter Tires

    Keep us posted on how the Nittos do for you. The way things are going with parts shortages, it would be great to know of another good option when I'm shopping later this year.
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