Forced Induction Custom FI Setup Questions

smoking turbo

Old Jul 13, 2003 | 09:00 PM
  #1  
fork's Avatar
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Default smoking turbo

I got my turbo done on my car three days ago and the car just started smoking very bad yesterday. The compression checked fine and there are no noises coming from anything just a lot of smoke out of the exhaust. The smoke was just normal white or grey smoke. But it didn't smell like oil or coolant at all. It didn;t smell like raw gas either. I disconected the charge pipe and didn't get any smoke from there. I took apart the the turbo to clcok it and it looked perfect. I'ts off of a starion and when I took it off perfect oil and coolant came out. I don't know what to do I need to figure out what is wrong because I need to sell the car asap. The set up is a 91 hatch b16 vafc 450s and a custom chip.
please help guys thanks
Old Jul 13, 2003 | 09:04 PM
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Default Re:smoking turbo

If you take the downpipe off, and look in at the turbo (exhaust wheel) are you seeing any signs of oil leaking by? normally if its "bluish smoke" that would be oil.. Grey/black normally means overfueled, It maybe your management setup, a tad on the rich side?... Try playing with your AFC for a bit, remember the car goes pretty rich on cold start ups, with larger injectors that could be the reason its smoking so much, even with the afc settings as low as they are.

Jeff
Old Jul 13, 2003 | 09:10 PM
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Default Re:smoking turbo

The car was fine for the first two days but it just started smoking. My afc is -35 low and -40 high I'm kind of worried to go any leaner than that because I can't blow it up. thanks for the help so quick.
Old Jul 13, 2003 | 09:18 PM
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Default Re:smoking turbo

Ok, when is the car smoking? under a load? sitting at idle? Lots of smoke? little bit? I guess this problem is just kind of hard to diagnose since we cant really see/smell the smoke to know what really is going on. Easy way to eliminate things, is just put stuff back to stock and see what goes away. example, throw the stock manifold back on, and see if it still smokes, this will obviously tell you that your turbo is causing the smoking. Or, put the stock injectors back in and put the AFC to 0 and see if anything changes. It maybe something really simple..

Setting the AFC lean on the bottom end isnt going to hurt anything.

Jeff
Old Jul 13, 2003 | 09:30 PM
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Default Re:smoking turbo

It started out snmoking while idling, but now it's smoking all the time. and it's a lot of smoke, but it dosen't smell like oil or coolant. This is why I'm stumped. It actually smokes a lot less when I get on it, and it's still boosting fine (8 psi). Thanks alot for the help I appreciate it.
Old Jul 13, 2003 | 09:44 PM
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Default Re:smoking turbo

exhaust leak?
Old Jul 14, 2003 | 02:20 AM
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Default Re:smoking turbo

It's not the exhaust being bad, the smoke is coming out of the tail pipe, and I pulled out an o2 sensor, and got the same thing out of the hole.
Old Jul 14, 2003 | 02:31 AM
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Default Re:smoking turbo

If you rub your finger in the exhaust is it wet? Does it smell sweet?
Old Jul 14, 2003 | 10:30 AM
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Default Re:smoking turbo

since nobody mentioned it... betcha your oil line kinked from the heat- Mine did after two days too. Hella smoke, easy fix. Check it and double check it. I had to put a 90* fitting on mine to make it make the turn to the pan. Never a drop of smoke again!
Old Jul 14, 2003 | 10:32 PM
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Default Re:smoking turbo

I think it may be the oil return, how long should it take for the smoke to stop after I fix it should it be immediate of will it take a while to burn out.
thanks

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