Jump to content
SAU Community

Recommended Posts

Howdy Gals & Guys.

I have a very interesting issue, my 4WD light comes on intermittantly.

I have a 97 Stagea RS Four V which has been converted to Manual and has a Power-FC put into it, amoungst other bits and pieces.

Anyway All the work was done before I bought the vehicle. Bought it about a year ago.

Now it has been bloody awesome, except as the weather has gone colder and colder I notice that if I give it a squirt when the weather is cold, the 4WD light does go on and I do go into RWD mode, which is worries me a bit.

I have checked the fluid level in the ATTESSA system (in the rear) and checked all the fuses, all look fine......?

No here is the funny thing, if I leave the car in sunlight for 2-3 hours and make sure that the passenger rear section is in the direct sunlight, (where the ATTESSA ECU is), I dont have this issue... wierd eh.

So what i am thinking is that the ATTESSA ECU doesnt like being cold..... WTF?!?!?! That cant be right!

So did a search but cant really find any threads that help out so anyone have any ideas what it could be?

Thanks!

Cy

Link to comment
https://www.sau.com.au/forums/topic/127099-4wd-light-on-dash/
Share on other sites

have you checked the connector going into the ATTESSA ECU?

it's possible it's gotten wet or something in the past,and has moisture trapped in it that causes connection issues when the car's cold. it could be corroded also.

I'd be checking that out first.

Justin...

yea i will check for minute moister as well. Check the component for the insulation and connections. Probably its dirty or loose.

Also you might want to get a CRC contact cleaner to clean the connecter as well,

Yeah well that wont be happening anytime soon, I just dont have the time :)

But thanks all for the suggestions :)

Perhaps you have the wrong grade fluid in your ATTESSA system or air in the lines perhaps? Do you know if your ATTESSA system was bled correctly?

No I dont, might look into bleeding it properly, I am sure there must be instructions somewhere on SAu to do it :)

Also what type/grade of fluid should I be putting into it? I just assumed that it was just power steering fluid? But I have not had to top it up at all yet, as fluid level in it sits nicely between Min and Max. Should I buy some and fill it up to Max?

nissan transmatic D is the fluid (regular auto tranny fluid)

i used Castrol Transmax Z synthetic auto fluid which castrol reccomends for the attessa system.

nissan fluid is like $30 a bottle and the castrol fully synthetic stuff is $65 or something.

sydneykid is this castrol transmax z good for the attessa system or would u stick with genuine nissan auto fluid?

heres the info on the castrol transmax z oil from their website...

"Castrol Transmax Z is a high quality fully synthetic automatic transmission fluid for use in both automotive and commercial vehicle applications.

Transmax Z has outstanding cold flow properties for responsive and smoother gear change at all ambient temperatures and load conditions. Transmax Z has outstanding high temperature performance with premium oxidative and thermal stability. This provides excellent transmission cleanliness and durability permitting extended drain intervals and decreased servicing.

The optimized frictional characteristics found in Castrol Transmax Z can contribute to improved fuel economy, reduced power loss and lower operating temperatures.

SAE 70W-80 API GL3/GL4 "

cheers

Brad

Edited by CruiseLiner

A similar topic has been brought up in another thread.

The reason your 4wd light is coming on is because the ECU is telling you that it has detected a problem in your ATTESSA system - just what the problems is, is anyones guess, but the aforementioned pointers should be a good place to start.

The 4WD light coming on does NOT mean it is in 4WD - just the opposite, which is why you only get RWD.

I find it inwardly amusing that you mentioned its getting colder in Rocky --- what from 25 down to 20 !!

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

    • The German place in Cabramatta was rock solid, fresh pretzel cooked to order back then. Then it went all quiet, after all the poker machines were removed, then I believe it closed for good. I did drive past the other week and noticed outdoor lighting a big screen, but no idea what is there now.  
    • Yeah I suspect even if you hold airmass per cycle/cylinder constant if you get too far away from stock you're still going to have problems running the factory tune within the bounds of the factory load scale. Cams, different displacement/rod ratio, etc. I'm just lucky that the GTIII-SS with wastegate boost + CA compliance cats is pretty much equivalent to stock turbos. When I have actual space I can finally get it tuned and modify the fuel system for flex fuel to 100% handle any detonation concerns when cranking the boost to whatever those dinky turbos can put out.
    • I would say no, why, because my daughter, who also lives in Goulburn, hasn't recommended us going there Pity, as we miss all the German joints around in Sydney, actually, the restaurants are the only thing I really miss about Sydney, and a special mention to Ishibanboshi at Bondi Junction, their Kara-age Don is heart cloggingly deliciousness (always added a special boiled egg...or 2) 😋 
    • Does that German restaurant still exist in the old place out the NW end of Goulburn? When I say "out the NW end of"...I am really being vague. It was 1997 when I was last there, and the only point of reference I can recall is that it was on the opposite side of the main drag from the big merino. And when I say "opposite side of the main drag", I don't mean "on the main drag". It was either a couple of streets back from there, or might have even been out in the sticks a bit further. Was an old farm building or mill or somesuch. And when I say "the big merino" I might actually be thinking of a completely different part of town, because I just looked on maps and the big bugger is not where I remembered him to be! The food was good, consisting largely of various German mystery-meat sausage/loaf things and kartofflen.
    • So while the second sentence is completely correct and the whole point of the conversation, the first sentence bears consideration. If this bloke is just hoping to throw big turbos on and drive it around, because there are no helpful facilities at all in his tropical paradise** then he likely has zero chance of even knowing what the TP is on the last column in the stock maps, let alone know whether the ECU is operating anywhere near it or past it. So the point is very very moot. And, per what I said before, at stock boost on those turbos, you may well be off the end of the map. **I'm just back from Vanuatu, so I know exactly what small Pacific nations can be like wrt paradise without requisite facilities. But it's not even that simple. I put a high flow on my car and had to drive it around without a proper tune because of the lack of opportunity*** to put the bigger AFM and injectors into it to allow it to be tuned. I had to turn the boost down to less than I had before, and back off the boost controller's ramp, because it was exploring parts of the map that it didn't drive in before, and really couldn't access for tuning on the dyno either, and so was pinging. It was still well within the last column, because when I first**** set up the Nistune on the Neo I rescaled all axes of the maps to give some more space to explore. ***Family dyno was broken ****This was 13 years ago, and the TIM thing wasn't a thing then and so TP would definitely grow when pushing past the stock tune's limits.
×
×
  • Create New...