I took my car into a mechanic shop(actually the one i work at) to get my cel light fixed which was on the car when I bought it. I have spent over 700 dollars to get code 71 fixed and it just keeps comming back on. I really wish that I would have read here about the 99c fix before I started spending money. The mechanic has believed it to be fixed about 8 times now and everytime it just keeps comming back on. Now he tells me that I need to rebuild my turbo because its blowing oil through the lines and clogging it up. ?? Does this sound reasonable? He has replaced every egr sensor and silinoid on the thing plus cleaned it out.. My car is completely stock 91t. I'm so frusterated right now . Last time I took it back in and he said he also scaned code 43 and said I should fix that before going on. This has been a very tricky situation as my uncle owned the mechanic shop and I work there I do not want to cause any problems . I work with customer service and have never seen anybody come back this many times with the same problem. Thanks for any advice on Code 71 and Code 43 you guys can give me besides the 99c fix as it might as well be fixed right after 700 dollars.