Hi i have a mitsubishi pajero enjin light came on then it started missing and blowing black smoke

sounds like you have a blown head gasket

Black smoke is fuel. One or more of the fuel injectors could be stuck open and when you shut it off, the fuel drips into the cylinder. When you start it, that extra fuel burns and blows out black smoke. Blue smoke is oil and white smoke is antifreeze/water.

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I just answered your other question about that Pajero here:

http://www.fixya.com/answer/answerpageslideview.aspx?ctg=0&fml=0&brd=0&thid=21201933

first push starting it was bad. sounds like a stuck exhaust valve. and I think you had a dead ignition coil causing 1 cylinder not to fire,and it was fill with gas ,and then you forcing it to start did more damage

a slight knocking sound , late starting and a thick black smoke

If your car is fitted with Manifold Air Pressure sensor (MAP) check that is operating OK. Sometimes if this is as at fault it can send the wrong signal that the engine is running lean and the engine computer (ECU) in turn compensates by injecting extra fuel. The clouds of smoke are unburnt fuel so not only does it look bad but it is wasteful/costly. The fault on a MAP can evolve slowly and therefore evades the computer diagnostics check for some while before being picked up. Also on the list of things to look at are:- 1) the mass air sensor on the air filter ducting 2) the EGR exhaust gas recirculation valve (perhaps needs a thorough clean) 3) the differential pressure feedback exhaust (DFPE) sensor - lies upstream of the EGR but if faulty can combine to lead to errors in fuel injection quantities.

http://www.delicaclub.com/load.php?id=20

Install the egr mod, will stop it smoking in no time
Delica owner...

head gasket gone.

white smoke is a sign of water leak in the head or head gasket

Blowing smoke when starting is not a problem this accours on all diesel engines