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The mkiv Supra Owners Club

no more boost and black smoke


Spoony

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hi

yesterday at 11pm i made some videos on our autobahn. when i drove 130 miles the boost pressure got lost.

i stopped the car, the pressore was always -0,2 bar, no boost and no vacuum.

 

i drove home carfully with 60 miles. car is running as long as i drive slowly.

 

today i checked if one of the intercooling piping is broken.

everything is ok, no lost of pressure in the intercooler or the piping.

i started the engine, black smoke came out of the exhaust, no boost and the car begins to stotter like yesterday.

 

what else could be broken? i hear the turbos spinning but no pressure. is there anything inside the oem twins that can make an error like that? im wondering that it doesnt show any vacuum. normally i have -0,7 bar when the engine runs

 

sorry for my bad english, hope you understand what i am talking about :)

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if its export spec, IE for europe then it should be the same as a Uk car no?

 

So black smoke and loss of boost pressure is usually a popped off hose or a split hose, double check very closely for spit pipes/hoses

 

You sure its black smoke, not blue, black would indicate excessive fuel been burnt AFAIK

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ok i found it!

 

one of the pipes from the pressure sensor at the intake side was droped off. there was a t-adapter for the boost gauge.

 

thank god :D

 

the car is doing 1 bar now, everything oem, just a new fuel pump. is 1 bar ok or do i have to take other sparks?

 

its a jspec, 2nd cat removed and spec nür catback.

 

how much hp should it make right now with 1 bar? :innocent:

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you want to watch that if you've taken it from the stock FPR point.

 

could make you run a little lean at high revs which could be, well, devastating. Make sure its tight...

 

1bar = around 340-360 bhp im not totally sure

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