[R34 Warning Lights - Hicas, Tcs Off, Slip, Engine Light]

HICAS, the motor is probably screwed in the assembly... before you get too upset, undo the plug, spray it with contact cleaner n see if it works. If not, who cares - buy a $100 lock bar, put it in, and take out the globe (fixed - will actually improve the car)

TCS n SLIP, this is a bit of a rough one as it can light up for a few reasons... again, pull the plugs off the TCS motor n clean them. Then crawl under all 4 wheels (maybe just rear 2 I think) and make sure the wheel speed sensors are plugged in. Not having them plugged in will send the ECU crazy thinking your driving on a sheet of ice or something.

Engine light, your guess is as good as mine here... but all the essentials that would trigger it (AFM, Coilpacks, Factory Boost Sensor, Knock Sensors, Oil Level). As mentioned earlier, my light came on when we removed half the factory sensors (no use for them) - can't really help with this one. Although, I think you'd be able to use a process of elimination here (AFM shot = car run like poo, Coilpacks shot = car run like poo, Boost Sensor = irrelevant with aftermarket ECU, Engine Oil = check dipstick, Knock Sensors = dunno how to test sorry, assuming voltage output)

Hey, thanks satanic, your thoughts are greatly appreciated. I will check it all out.

Thanks

Dave

[R34 Gt-t Running Rough]

Hey guys, probably a totally different problem but a while ago I had my TCS, slip and ABS lights coming on. Had it scanned and found it just needed a new wheel speed sensor. But I didnt have the engine light come on and had no misfire obviously lol.

Good luck!

Hey Jase, thanks mate. I will see if the splitfires make a difference and then look at changing the wheel speed sensor to see if it will solve the HICAS problem.

I'll post a comment with the results. By the sounds of it there are a lot of people having the same problem. I'm no expert on cars, I just enjoy driving them lol. For others reading this, from what I have been told, the most common solutions for lights such as TCS, SLIP, HICAS and the engine light are to replace the coils with splitfires, check plugs are clean (perhaps upgrade), check the wheel speed sensor, check battery and fuses. You could get a coilpack load balance test or download the ECU information to show the errors too.

Cheers

Dave

[R34 Gt-t Running Rough]

Hi Davey,

The coils were the problem for me, but it may or may not be the problem for you. If you can afford some splitfire coils i'd recommend changing them anyway because from what i've read most guys with r34's end up changing them anyway.

A profec B is an electronic boost controller, and an SAFC NEO is an Air Fuel controller not a new engine. Do a quick search on them and you'll find plenty of info around about them.

Hey Scotty, thanks for the prompt reply. I will change to splitfire coils. I have been looking at getting a boost controller and will look into the air fuel controller too. I'm in WA, is there a website that has a list of workshop specialist that would know the car inside out? Any recommendations?

Other people have brought up to:

-Download ECU diagnostics to see errors and go from there

-Change coils, sparkplugs (Inidium plugs?) and battery (which I need to do anyway)

-Look into the speed sensor as it is a component of the HICAS and TCS

-Look at if any of the sensors are playing up

-Replace oil in engine, diff and gearbox and any filters

-Check for any loose connections

-Do a coil pack load balance test

-Check the ignitor as it may be on its way out

-Could be a blown fuse, faulty battery connections or aren't clean, corroded wire, could be alternator belt slipping, ensure the battery V is at least 12 or 13V

-Tune the boost

Any other ideas or which ones may help the most?

Thanks

Davey

[R34 Warning Lights - Hicas, Tcs Off, Slip, Engine Light]

is it always on? like does it stay on all the time? or when you turn off your car and turn it back on does it dissappear?

if it stays on its best just to take it to a work shop asap.

My mates one happened like that awhile ago, turns on then when she turned off her car and turned it back on, its all off..

I start my car and the HICAS light is always on no matter what. The other lights (TCS OFF, SLIP and Engine) come on about 5 minutes into driving and then stay on until I turn my car off. If I leave the car for a short period and then start it up again, it only takes another 5 minutes for the lights to come back on even if the car is just idling. I don't thrash the car at all so i'm pretty devo and confused as to what is going wrong.

So far the next steps are to take the car in to a workshop and get them to look at the computer error diagnostics and go from there and to replace the coils with Splitfires as well as upgrade the spark plugs.

Does anyone have any other ideas? If this has happened to you or someone you know and you found out how to fix it can you please let me know ASAP, it would be much appreciated.

Kind Regards,

Davey

[R34 Gt-t Running Rough]

Just thought i'd post how my car is going now. I had some Splitfire coils and Iriduim plugs put in 2 weeks or so ago(along with Profec B + SAFC Neo while i was at it ) and i haven't had a problem since, hasn't lit up any of those warning lights and hasn't missed at all.

Only now very rarely the HICAS light will come on after i've put my foot down on high boost, which it never did before. Not sure what it is but i'm sure its nothing. The car is heaps more fun to drive now, doesn't feel so gutless like before. Had it tuned on 12psi tapering off to 9.5psi towards redline, made 186rwkw which is not too bad, gotta go back to Willowbank now to see what it can really do any excuse will do!

Hey Scotty,

I have the same problem - HICAS, TCS OFF, SLIP, Engine Light Symbol. So you recon replacing the coils with splitfires would solve the problem? It's electrical hey? What is "Profec B + SAFC Neo" Is that a whole new engine?

I will wait to hear from you.

Cheers

Davey

[Electrical Problem]

hahah mate, i posted a thread in here a few days ago asking the exact same thing,

im so glad your thread has had more response than mine, ill replace the coils this week and see what happens

I have the same problem. HICAS, TCS OFF, SLIP and Engine Light.

Any help, does replacing the coils with splitfires work and solve the problem all together?

Thanks

Dave

[R34 Warning Lights - Hicas, Tcs Off, Slip, Engine Light]

Hi Everyone,

I need your help, I have an r34 Skyline and some warning lights have come on the dash. They state HICAS, TCS OFF, SLIP and the Engine Light Symbol.

How can I fix this problem? What is the reason behind it?

Any help is greatly appreciated.

Kind Regards,

Dave