Jump to content
SAU Community

Recommended Posts

okay, so i know no one wants to hear about peoples hicas issues because everyone seems to have them, but mines different to anything i can find on the web.

when i bought the car, the previous owner let me know that it was a bit dicked.

originally i would start the car, id have power steering for about a minute, then it would go stiff (limp mode?), and then within 30 mins my hicas light would come on (and off intermittently). i also had the issue of my AWD light coming on occasionally, and id never seen the torque gauge move.

ive changed nothing on the car since then (besides the drivers seat). the only thing thats changed recently as far as i can tell is the weather is alot cooler now.
about two weeks ago, i noticed my torque gauge start working and i can feel AWD working. now in the last 2 days my power steering seems to be working 70% of the time.

if i chuck the car into a corner hard, power steering will begin working as usual. it will cut out for random periods after that, or even semi work, as in it feels slightly firm.

Im confused as f**k, and im wondering if AWD engaging is somehow kicking my power steering out of limp mode?

ive never been able to get the car into diagnostics mode which led me to believe the steering angle sensor was at fault, but now i have no idea. all this shit seems completely random and its frustrating to drive.

i dont want to lock it out, i like it (when it works) and yes ive checked fluid levels lol.

so any ideas as to what bullshit is going on here? much appreciated you guys :D

Link to comment
https://www.sau.com.au/forums/topic/442791-hicaspower-steering-going-crazy/
Share on other sites

Shitty R32 electronics. At least yours isn't trying to kill you like mine is (random HICAS 'kicks', mid corner is dangerous sometimes hahah). Check all earths and what not in the arse end of the car. Put new neg terminal with new earth strap to engine block (from battery negative terminal). Has the fuel pump been rewired?

haha, yeah i get the mid corner kicks too. to my knowledge fuel pump hasnt been touched. i do have fuel problems involving my fuel gauge but thats a whole different story lol.

ill look into the earthing for sure!

on cold starts in the morning my engine doesnt idle great because of bigger cams, i get the whole almost stalling thing where ur headlights n shit dim as it struggles to idle on take off. my steering goes stiff for those couple seconds while the pump isnt getting full power. is that normal? i feel like it should all be primed and take a little bit for me to lose power steering. not sure how it works but thats my assumption..? f**ked pwr steering pump? might be a dumb question haha

Edited by rekoyl116

+1 for earthing. I recently repositioned and tightened up my battery terminals and earthing points for the same reasons as you (dimming lights, idle hunting etc) and noticed a big improvement straight away. You might, like me, even consider upgrading to 2 or 0ga battery cables.

I'm not familiar with R32 mechanical HICAS but I had issues similar to you on my R33 and ended up locking it out. I'm sure it is a good system when it's working well but I could be fcked with it.

ill get onto the earthing when im back in perth, seems like a sensible thing to do. had some issues with my immobiliser not disarming tonight too which ill have to fix aswell. seems like this car has some proper electrical issues.

anyone else have ideas as to what the deal is with hicas?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Here is the mess that I made. That filler there was successful in filling dents in that area. But in the middle area. I can feel dents. And I've gone ocer it multiple times with filler. And the filler is no longer there because i accidently sanded it away. I've chased my tail on this job but this is something else lol. So I'm gonna attempt filler one more time and if it doesn't work I'll just high fill primer the door and see where the issues are because guidecoat is of no use atm.
    • Ok, so I think I sort of figured out where I went wrong. So I definitely overthinked it, and I over sanded, which is probably a large part of the problem. to fix it, I ended up tapping some spots that were likely to be high, made them low, filled them in, and I tackled small sections at a time, and it feels a lot better.    I think what confused me as well is you have the bare metal, and some spots darker and some are lighter, and when I run my finger across it, it' would feel like it's a low spot, but I think it's just a transition in different texture from metal to body filler.    When your finger's sliding on the body filler, and crosses over to the bare metal, going back and forth, it feels like it's a low spot. So I kept putting filler there and sanding, but I think it was just a transition in texture, nothing to do with the low or high spot. But the panel's feels a lot better, and I'm just going to end up priming it, and then I'll block it after with guide coat.   Ended up wasting just about all of my filler on this damn door lol  
    • -10 is plenty for running to an oil cooler. When you look at oil feeds, like power steering feeds, they're much smaller, and then just a larger hose size to move volume in less pressure. No need for -12. Even on the race cars, like Duncans, and endurance cars, most of them are all running -10 and everything works perfectly fine, temps are under control, and there's no restrictions.
    • Update: O2 sensor in my downpipe turned out to be faulty when I plugged in to the Haltech software. Was getting a "open circuit" warning. Tons of carbon buildup on it, probably from when I was running rich for a while before getting it corrected. Replaced with new unit and test drove again. The shuffle still happens, albeit far less now. I am not able to replicate it as reliably and it no longer happens at the same RPM levels as before. The only time I was able to hear it was in 5th going uphill and another time in 5th where there was no noticeable incline but applying more throttle first sped it up and then cleared it. Then once in 4th when I slightly lifted the throttle going over a bump but cleared right after. My understanding is that with the O2 sensor out, the ECU relies entirely on the MAP tune and isn't able to make its small adjustments based on the sensors reading. All in all, a big improvement, though not the silver bullet. Will try validating the actuators are set up correctly, and potentially setting up shop time to tune the boost controller on closed loop rather than the open loop it is set to now. Think if it's set up on closed loop to take the O2 reading, that should deal with these last bits. Will try to update again as I go. 
    • More so GReddy oil relocation kits, sandwich plates, etc. all use 10AN fittings. And same, I've only used 10AN and my car sees track work (circuit, doing laps, not 10 sec squirt business).
×
×
  • Create New...