Hi Blanco69W, I thank you for your prompt response, I tell you that thank God for now I have no problem with the Bora, but I always liked to have information of the vehicles that I have possessed since I am a mechanic since I was a child, although now I am retired.
The engine is four -cylinder but I get the attention that you stop using the MAF at the output of the air filter and investigate it in multiple in a single unit sharing with the MAP.
So I guess may have other modifications that I do not know. The first tool that I buy was the scanner, so I will continue as failures that require special tools as long as I get the physicist.
The manual that is the VW Jetta, Golf, GTI Service Manual A4 Platform. Manual Exemption, (It is to recommend), eh Printim +/- 1900 sheets, but that engine is not, so I will see what you recommend to see if I find out something else.
I thank your information again and we will inform ourselves of the achievements .......... Horacio.