Aid!!! Problems with my jetta 94

Hi, I have several problems with my 1994 Model Volkswaguen Model, Standard, 1.8 CIL.

1.- The car when it turns on, turns on well, but if I let it accelerate, it turns off ...
2.- The engine is heard deaf and causes simple explosions, nothing scandalous ... it pulls a little in low speed, 1st and 2nd. normally.
3.- It seems that the spark plug 2 (if you look at the engine after lifting the hood is the 2nd spark plug) does not work. The spark plugs do not get wet with oil.
4.- Blue smoke (little) in standby or neutral when I am in traffic light and to start.
This is what I did:

1.- I changed spark plugs, cables, lid and rotor ... Everything new and follows the problem.
2.- After I changed oil and filters, the smoke began.
3.- Time is freshly checked.

Some cuates (who supposedly know) tell me:
from spark plug 2, a valve does not work.
Check engine compression, since that is why it loses strength.

Can they help me? I do not turn to the mechanics from here, because they are not frank, they like to get money, that has happened to me.

I appreciate your comments

Betobrambi

Manzanillo, Mexico

If the smoke is when the vehicle starts, then the problem may be of valve seals, measuring the compression is necessary for the issue of the explosions can see a burned valve, and because of the force it lies in the same, you have a simple test, with the engine in Relay disconnects the spark plug cables first the one and see if the engine worsens or stays the same, so we will know what we will look for.

ask? Did you change the coil too ??? even could I improve, I don't say this. that affects them ...

I will change the coil, it has a normal escape, I do not know that it is Headers, but nothing sports ...

They told me that the valves can be flamed, but how can I check this?

Thanks for the advice