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i dont think a fuel injector leak could cause damage to a turbo. The turbo pushes more air into the engine so it can burn more fuel with the added air. a fuel leak either inside or outside the motor shouldn't have any affect at all on the turbo. if the fuel isn't getting into the cylinder to burn then it wont create the gases from that cylinder to spin the turbo up to proper speed, but the engine would run really rough if it wasn't getting fuel in one cylinder, same as taking off a spark plug wire on a gas engine.
if diesel and turbo , check turbo operation of for holes in the intercooler
if turbo or naturally aspirated check/ replace injector tips as black smoke indicators squirting and not atomizing
if petrol check for excessive fuel pressure, faulty injectors , leaking injector seal
regardless of petrol or diesel --black smoke indicates incorrect air / fuel ratio ( too much fuel) so injectors, intercooler, bad turbo or blocked air cleaner are all candidates for the fault
? 8:14 https://www.youtube.com/watch?v=xLySKue4HzM
Feb 22, 2013 - Uploaded by sandgroper111
Holden Jackaroo 2001 3.0 TDI 4JX1 Problems .... Hi there, currently own a 3.0 2002 lwb trooper 34K miles ...Missing: ltd
Black smoke indicates you are running rich. You may have to address the fuel injectors to make sure one is not stuck open. After replacing the MAF censor this would be my next step. Also your turbo seal might be leaking causing your truck to run rich throwing off the o2 censor. Also you can get black smoke from turbo blowby. Not burning oil but actual oil passing the rear turbine seal and getting into the exhaust. This should give you a few good places to check out. Good luck to you.
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