Black Smoke After Turbo Installation

[aquariuz6]

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

[lineskee 33]

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.

[Aif]

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

[R31 Gagz]

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 October 4, 2007 by R31 Gagz

[Syphon]

I don't know if it specifically relates to your problem but I would also check the Crank angle sensor plug and make sure it's clean. Pretty easy to spill water over that.

[aquariuz6]

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.

[justin911]

sounds like the cold start tune isnt right ?