Jump to content
SAU Community

Recommended Posts

Hi guys,

Just wondering if you guys knew what is wrong with my car.

I just got the VG30 Highflow installed in the weekend. It was all fine until the next day when I put more coolant in to top it off.

Mind you that I went for a long drive that day. Just cruising, no hard driving.

Problems started when I filled the car with more coolant and I accidentally tipped some around the bottle.

After that, the car starts funny. Usually first try, the car starts then bang stalls.

Then 2nd try, the car is hunting on idle going up and down between 0 - 1000rpm.

Any ideas? Is there any electrical wires that I should not have wet with the coolant?

Any help would be great.

Cheers,

Bernard

Are all your fuses ok? u sure u werent tinkering with anything else? is everything connected back up properly in the engine bay? having a new turbo put in, may not have connected the afm plug properly or something simple like that. And what does the black smoke have to do with it? is it a lot of black smoke, and coming from the exhaust im assuming.

doesn't black smoke means its running rich,can u smell fuel, if there fuel coming out the exhaust (very fine spray) ?my mate did a turbo upgrade on a sr20det and it was smoking till it got tuned. don't know if that helps at all.

good luck

AiF

Black smoke from the exhaust is overfueling. If its doing it at idle then you probably have a vacuum leak or afm not hooked up at all (or not properly since you drove it for a whole day, might have fallen off / come loose). Also when you spilled the coolant, are there any fuse boxes below your coolant reservoir bottle? If so open then and make sure its all dry and no fuses are blown.

Do you have an aftermarket ecu that you re-tuned with your high flowed turbos? Got a mate whos HR31 ran rich as hell after installing an RB25 turbo onto his RB20 running a power fc but hasnt been re-tuned yet and constantly fouls and kills his spark plugs.

Hope that helps until the gurus get here.

Cheers!

Gagz

Edited by R31 Gagz

Thanks for all the replies.

Well this problem is only at startup where it seems to be coughing up.

But when it gets back to normal in a few minutes the black smoke goes away.

What does this mean?

Ecu has been remapped for the Highflow turbo.

Runs really good after a few minutes after startup.

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

    • If you take the top half of the intake off you can unbolt the flap off the shaft and leave the shaft in there blocking the hole. Then you can remove the little vacuum canister off from under the manifold and get a spare vacuum line to run to the ECU. I can take some photos of it later. Probably best to get the vacuum source to the ECU sorted first though. Mine all worked mint with the base map from the GTT an I've pretty much let the closed loop sort the fueling and took 1 degree out of the whole timing map.
    • This IS something you also have to configure in Haltech (or at least I did in the past when going from onboard-to-ECU map sensor and an external MAP sensor in haltech land).
    • I'm hoping it's something as simple as the ECU is looking for an external MAP sensor, but he is trying to use the onboard MAP sensor.
    • You won't need to do that if your happy to learn to tune it yourself. You 100% do not need to do that. It is not part of the learning process. It's not like driving on track and 'finding the limit by stepping over the limit'. You should not ever accidently blow up an engine and you should have setup the ECU's engine protection to save you from yourself while you are learning anyway. Plenty of us have tuned their own cars, myself included. We still come here for advice/guidance/new ideas etc.  What have you been doing so far to learn how to tune?
    • Put the ECU's MAP line in your mouth. Blow as hard as you can. You should be able to see about 10 kPa, maybe 15 kPa positive pressure. Suck on it. You should be able to generate a decent vacuum to about the same level also. Note that this is only ~2 psi either way. If the MAP is reading -5 psi all the time, ignition on, engine running or not, driving around or not, then it is severely f**ked. Also, you SHOULD NOT BE DRIVING IT WITHOUT A LOAD REFERENCE. You will break the engine. Badly.
×
×
  • Create New...