Help with a Ford party

Hello good, I comment on my problem with a Ford Fiesta V 1.6 Gasoline 2003. The case is that the engine in idle wobbles a lot and the rpm needle oscillates.Col I slowed down, but I wasn't sure and another mechanic told me that the coil seemed but that I didn't know either. The car has strength and such but I don't know how to me that the switchboard does not detect anything. Thank you

I had a similar problem with a scort.


I recommend that you review an electromechanical valve that normally after some time to function is filled with ollin and this does not allow that closure and what happens that slowly enters a lot of air to combustion and it
parates and/or try to clean it

Ok thanks for Resopnder. I will look at him but the other day I went to ask the price of that valve, I do not know if we will talk about it, the IAC, and told me the spare parts that came all set in the butterfly, but I don't know.

Hello.
Well because of the experience that I have the problem that a engine is only unstable in idle is because of an air input.
I advise you before changing any pieces that you check all rubber tubes that enter the admission collector and especially the rearbofreno depressor tube that is fat.

The best thing to try the tubes is a bacumetro but not all workshops have one.

I hope you are lucky.