Search results for query: *

  • Users: PADDO
  • Order by date

Forum search Google search

  1. PADDO

    2004 Lexus LX470 AHC Help Needed

    Yes, doing fine now. Thank you 🙏
  2. PADDO

    2004 Lexus LX470 AHC Help Needed

    The C1712 code STRONGLY suggests an open circuit in that wiring loom.
  3. PADDO

    LX470 AHC help/info

    What’s with the italics?
  4. PADDO

    Home made lx470 AHC over ride

    Yes, doesn’t matter if you’re using the previously available “name brand” override switch or sticking in a $2 DPST switch inline or cutting wires - if the system doesn’t know the vehicle is moving ie no front wheel speed input - then the adaptive variable suspension stays in its quiescent state...
  5. PADDO

    Home made lx470 AHC over ride

    Yes you can, but then you will have no adaptive variable suspension because the system doesn’t know the vehicle is moving. It’s a simple dynamic system but when you eliminate the key input, vehicle speed, you get consequences. So yep, cut wires and drive around in position 8 non dynamic damping.
  6. PADDO

    Ahc acting up

    The vast majority of undefined, random height/leveling issues are the result of some sort of sensor or harness defect - wear and tear, broken/maladjusted mechanisms, internal corrosion or a harness issue. Without monitoring the sensors feedback (all three) and generally assessing the system it’s...
  7. PADDO

    Ahc acting up

    The three sensors share a common signal point to the ECU, the two front sensors are on their own circuit and provide a front left and front right input to the ECU. The rear is on its on cct and it provides it’s own input. Firmware determines vehicle heights and leveling on actual voltage...
  8. PADDO

    Ahc acting up

    It’s actually pretty easy to screw up swapping in a Dorman aftermarket sensor if you’re not just a little bit careful. They can be inadvertently over rotated when tightening the retainer nut and you loose the crucial mechanical to electrical (resistive) alignment and consequently get bad and/or...
  9. PADDO

    Definitive list of AHC maintenance items

    Pete if your front end appears high then that is consistent with the +2.2 inch reading for the front right which makes the - 3.2 inch for the front left look pretty damn odd. I think your front left sensor is out of whack and the system has gone into fail safe. If you have manual control over...
  10. PADDO

    AHC Sensor Lift + Override Switch Brainstorm

    Guys, do you realize that when you interrupt the normal speed inputs to the AHC ECU via switching you’re also disabling the adaptive variable suspension? Ever noticed that when testing and tuning the system whilst in your garage that both step inputs (damping settings) are 8? Well they are 8s...
  11. PADDO

    AHC Fluid Change How To -- Need Input

    I’d lower your front neutral pressure another 0.2-0.4 MPa. How many graduations are you counting on the L to H check? If you’re not getting air/foam out of the front hydraulic circuit and the fluid you do get is somewhat pinkish and not black/nasty then you probably don’t need more fluid...
  12. PADDO

    PLEASE HELP AHC pogo stick

    You want 825 psi front and something like 725-750 rear at your chosen N height. Low and H pressures don’t really matter, nor does the 16 step damping at anything other than N either, unless you install a height override and drive in H. Then you’d reset pressures to your actual driving height on...
  13. PADDO

    PLEASE HELP AHC pogo stick

    The system is designed to drive at one height (N) with a predetermined pressure range for the front and rear circuits. If you lower the height (and therefore the preload pressures) or raise the height (and pressures) you change the whole equilibrium of the system and it can’t work to the fullest...
  14. PADDO

    PLEASE HELP AHC pogo stick

    Normal. Henry’s law of gaseous expansion. Open a soda bottle and it fizzes = Henry’s Law.
  15. PADDO

    PLEASE HELP AHC pogo stick

    Fixed, sorry
  16. PADDO

    PLEASE HELP AHC pogo stick

    Pm me your address and I’ll loan you my gauge set.
  17. PADDO

    PLEASE HELP AHC pogo stick

    What’s the ride quality like at N with the system manually locked at damper setting step 1 front and rear? If you’re seeing the rear step changing whilst in motion then that suggests the control side of things should be (could be?) ok. I’d love to know what your actual pressures are, via gauge...
  18. PADDO

    PLEASE HELP AHC pogo stick

    Nah, it’s all in the books. Books + Techstream + experimentation = results (sometimes) 😀
  19. PADDO

    PLEASE HELP AHC pogo stick

    When you’re sitting in park, engine running the front and rear damper settings remain at mid setting (step 8 if the system is working as designed). The adaptive variable dampening doesn’t become active until you’re moving and then it’s a function of speed, braking, acceleration and a few other...
  20. PADDO

    AHC Front Globes only

    This is so wrong, bad information. The front hydraulic circuit and rear hydraulic circuits are separate and definitely are not cross connected.
Back
Top Bottom