Help with a 2002 Ford Ka, problems on

I do not turn on any light when I am on, I explain more or less as things are, as I don't know much of mechanics I hope to understand.

I turn the key at the same time as the clutch pedal and the car tries to turn on, so that I finish lighting I have to step on the accelerator, the car is on while the accelerator floor but when it stops accelerating it goes out. I have to do the same again, sometimes the second attempt lights and in others I have to try three or four times, I already checked antifreeze, oil and opened the chest but I did not see any loose cable. It is about to reach 70,000 km and it has been given maintenance according to the manual, maintenance up to 50,000 are agency the 60,000 I did it in a workshop and that of the 70,000 still I do not know where to do it because the agency is charisima and I do not have a trusted mechanic

Ok .... Then we can say that the spark plugs, gasoline and air filter cables have been replaced and are good, the acceleration body is clean, when removing the air filter housing can be seen, if you see it black it is dirty and you have to clean it, you have to check the pump cedase can be for change or dirty.
The Mallor problem that I see is that you are afraid to put it in a place and you have an account as if you had been a month for a month, in these days it is difficult to get a good technician that is interested in solving your problem and not only in your money, in part are you part?

I recommend you take your car and try to take it to a single workshop, so they will familiarize themselves with him and over time they know the future failures according to their history. I think it is the TP sensor. Greetings.

Many for their answers and time.

I am from Mexico, DF and I will follow the advice to take the car to scan and I think it will be best to do the service in the agency and they will tell me what is the problem that exists with the car and I can go to a workshop with the certainty of what they have to fix.

Salu2