Mitsubishi Lancer 2.0 2004 acceleration

Good afternoon lords of the forum, I have a detail in my Mitsubishi Lancer is Version Touring Motor 2000 cc, the problem is as follows, the car in the revolutions of the tacometro, tells me that they are below 900 and there comes a time that this point to go out but does not do so, and when I turn the a/a even more, now, carefully clean the intake system, butterfly, butterfly, a regulatory valve, a regulatory valve, the regulatory valve, the regulatory valve. Perfect, the revolutions are maintained in 900 being the automatic box in neutral, D, 1,2,3, without accelerating it, now when I make long routes such as going to one place to another or traveling perhaps, and accelerate the car as if I tried to stop when I want to continue accelerating to advance in the change, loses strength in acceleration and the changes makes it with delay, and in the rise, and in the rise. parked and on him I accelerate it brust thoroughly and makes me a shooting sound at the time that removing the foot in the accelerator, now another problem would be that when I remove the spark plugs are full of oil, I would have to be careful in this case because it can be the tires that go in the tapas that beat or the tube where the spark plug are not sealed, but I worry that there is also oil where the threads go Check the oil leak? But I have to be careful with the pulley and time strap, it is most likely to scan it, but I want to see their opinions in this case to have information before doing that job ......... and unfortunately the cost ..

If you are throwing exploions x escape, that is that a lot of gasoline is going on, you also have to check well that it does not be leakage of the current inside the XQ distributor usually also goes from throwing oil exploits I do not think it is because it would come out white smoke and if black smoke comes out it is gasoline clean and verify again
I hope that my help serves you

The operation of the EGR valve that is stuck with exhaust carbon must be verified