Problems with EGR valve

Hello everyone I have a Zafira Club 1.6 of 2003-04, for a year I have problems with the EGR of recirculation of the exhaust gases. The first time they cleaned me in the council but it has failed me 3 times more with the consequent economic expense . I would miss the car workshop manual or instructions from someone who has been cleaning the blissful valve. I could tell me someone if you can cancel and like. Thank you.

Friend can clean it with an ultrasound equipment, or with a little gasoline, the problem is that depending on the valve you have is how they are canceled and cleaned, usually the EGR is operated by an emptiness from an orifio that is a little more arriva of the Maripoza, disconnect from Ahy and you take a serrated step to avoid the entry of air and there are some eg. There is where the problem is. I have never canceled one of those would have to do to tell you

Ok, thanks for answering, my car is 2003 so I think I will have the valve sent only by vacuum I will disassemble and check if so. If it is the ancient EGR and it will be annulled later, I tell you, for example, with the ITV, or lack of power ....

The problem that the EGR commanded by the ECU must be fooled by the signal when Ecu tells you active, to deceive it with a flow signal that from an opposite pulse and that in what I do not do as it is done I will do the test but not very soon, but I think that in some Internet page I saw it, seek to engage, as an egr.

Ok thanks I will look on Google in case I find something.