Deisel engine missfires

Has your car got a turbo ?
If so the seals my have gone in it.

Your duplicate question did not say it was a diesel.
Usually black smoke on a diesel is dirty injectors or the engine temp not reaching normal range.

Did by chance the Engineer carry out a comptression check at "ANY" time?

if its black smoke and id say it is being a deisel it can be injectors or just simply fuel pump timing. get it to a deisel specialist to check the pump timing and your fuel load under acceleration, only real way to get it sorted.

you have a severe missfire thats why the light is blinking
the smoke and sound were the cat converter[s] glowing red hot from the missfire
dont drive it untill the missfire is fixed or youll ruin the cats[if not already] plus a good chance of fire exists

It is burning the oil,and it is not noticable ,and the oil pump is either weak,or the cam/crank,rod bearings are worn,and the pressure does not make it up yo the valve train.

SOUNDS LIKE AN ECU PROBLEM IT IS COMMON WITH THAT MODEL

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

Call "Duane" at the Dalton Bus Garage, Dalton, OH...you'll have to call the High School office (be NICE, he doesn't HAVE to answer your questions). No one knows more about this engine than Duane.
Good Luck
Sorry, you'll have to Google for the number

Before you do the next oil change,get a can of motor flush.
This is the inexpensive method the free up the rings and restore some of the compression.
Use Shell 15W40 oil ==
Do you know the history of your replacement engine?
When was the last timing belt change?
A loose timing chain and guide can cause injector timing problem.
==== Start monitoring the coolant level for protential head gasket leak. ====
To save time,I would do a high rpm (below REDLINE) highway ran to blow off all remaining diesel SOOT.
Let the shop to do a compression test. DO NOT DO THIS YOURSELF.
The max psi is 1850 PSI
=== Stay away from biodiesel blend fuel until you figure out what's the cause of the problem.
Use Diesel Cleen silver bottle and see is there any improvement. ===
Add the recommend dose of SEAFOAM into the crankcase to soften the valve stem seal.
Leaky valve stem seal can introduce oil drop into the cyclinders over-night. =====
Mointor any oil lose from valve cover.

Is the smoke only from tail pipe?


Please post answers and I will follow up on it.