IAC valve

HELLO GOOD EVENING.
What I am aware of is that the IAC or Step by step valve is a valve that is automatically controlled; That I mean that when you contact the key the valve, the valve moves in its route until it reaches its seat in the installation cavity and does its zero position. From that position it begins to regulate according to the information that resibates from the ECU.
LUCK...

Hello Victor. thank you.
Thus I understand about the valve Iacpero the problem persists. It makes its complete route when I put and remove the key when I have it disassembled and connected but when I put it if I do not accelerate it is kept at 1000 rpm but with the first accelerated as it is stuck and does not make it slow down, it already changes it for a new one but exactly the same thing happens.
greetings.

Hi Raponcho I have already uploaded a manual on the Magneti Marelli injection that is what your car brings so that it is a little easier to diagnose the failure of the same since there is detailed the operation of the Go-Home program as well as the Close Loop since both systems depend on the proper functioning of certain sensors to be able to achieve efficient operation.

all the best.

PD: The manual is in the manual section of the Volkswagen workshop but also and inserted in this post since I could not see that my manual in aforementioned section appeared.

Greetings Raponcho. Check that the motor gas return tubes to the collector are not broken, those that pass next to the distribution cover.

Hello, good morning, I have a Ford Fiesta 98 ​​and presents the following problem: 1) Luegio that the vehicle rests more than 4 hours to turn it on is a problem the swiche and goes out after passing it about 5 times is that the engine turns on ..
2) Once igniting it does not go out but when passing the 120kmph, or 3400rpm the vehicle loses strength and makes as if it were going out ... This problem .. Thank you