Im not sure if it is acceptable to blank the EGR, kasi on the long run it will damage other ancillary parts, the other day I just changed my EGR thru Diamond service center. Cost around P8K excluding labor, dati dati linis linis lang, it reach the point na kailangan palitan na. Out of curiousity binuksan ko yung defective daw, it consist springs, valves & gears that push the valve to open,nilinis ko then lubricate ,palagay ko pwede na uli, sana there's means of testing if it is working, same as the inhibitor switch ng transmission, consisting of three points contact, cleaned it with contact cleaner palagay ko okey na.
Thats the problem with casa they are easy to replace the whole unit, they wont dare to pry open , I will just keep it as reserve ,at least it give me the chance to answer ano ang nasa loob na ito at takot buksan ng mga service center ng casa.