Turbo drops in and out and blows black smoke and after 10 miles on highway turbo doesnt work at all and no smoke

Possible cause is several drops of oil are leaking past the valve guide seals when the vehicle just sits. When it is started the oil begins to burn off in the cylinders and after awhile the smoke disappears. I have always recommended cha going the oil to a synthetic and adding an oil additive called Restore. It comes in a cylindrical can in 4, 6 or 8 cylinder size. Put 1 can in with the new oil. Drive the vehicle on the highway for 45 - 60 minutes. I recommend putting on a few hundred Mrs. The additive restores the valve seals preventing the oil from dripping into the cylinders. Have used it on my customers vehicles for 20 years. Saved them a lot of money from replacing the seals.

Blue smoke is oil burning. You may have a bad seal in the turbo sucking oil into the intake stream.

Sounds like a bad turbo to me. When you "kick it in", the engine falters and you get black smoke for a while. What is probably happening is that the turbo is leaking oil into the intake air stream, putting it into the cylinders with the fuel/air mix and causing one of two issues. Either the oil is inhibiting the combustion process, causing the falter and the resulting poor ignition, plus the oil, is giving black smoke, OR, the oil in the cylinders is fouling the plug momentarily, resulting in the fuel/oil being passed into the exhaust stream, burned in the catalytic converter and exits as black smoke. If it runs OK except when under turbo load, have that thing checked out ASAP. And, as far as the light staying on, most faults will set permanently after they occur three or more times within a certain period of time. This is ti ensure that intermittent faults won't cause false setting of the light.

Diesel engines smoke when under a heavy load. Unlike a gas engines, a diesel engine uses fuel that is more like an oil.Smoking is a good indication the fuel is not completly burning because of loaded engine spee. White smoke indicates the fuel is not ignitingefficiently. Truck, boats, tanks abd anything else using diesel fuel will smoke when it gets more fuel than it can use.. Easing up on the throttle will lessen the smoke but not eliminate.. Of coarse if the demand is lessened by applying less loadyhe fuel consumption drops.Not to worry as long as the smoke doesn't attract the EPA.

Remove the turbo, soak it in diesel, see if turbines start to spin. Normally it's just carbon sticking on the blades or burned out bearing. Let the turbos cool down before shutting off the engine.

I'm affraid it's the turbo that is faulty, and it's not a cheap job. the turbo has a oil pipe going to the turbo to lubricate the turbo bearing . When the bearing wears out the oil enters the engine and burns causing to smoke. Good luck

pump may need recalibrating or a kit through it
or you may have a cracked turbo

Depending on the color of the smoke.....

Blue smoke = Burnt oil (Valve steam oilseals)
To fix you need them replaced can be done without removing the head.

Black smoke = Too much fuel (Running rich)
Tune-up replace air filter.

If its a turbo it could be the seals in the turbo but i doubt it as it stops smoking.
Hope this helps , Please rate me as feedback does help.

how far did you drive it after installing turbo??? sometimes you need to take it out on the highway for several miles to burn everthing out of the exhaust system.

MASS AIRFLOW SENSOR THERE ABOUT £6O WHEN THEY PLAY UP THE CAR WONT IDLE PROPERLY AND POOR RUNNING/HESITATES BEFORE IT PICKS UP AGAIN, NOT SURE ON THE BLACK SMOKE THOUGH, GOOD LUCK .