Engine light on and car losing power

My check engine light on losing power took it to shop said I had a vacuum leak and was charged $35.00 for having leak plus $75.00 for labor and $95.00 putting the code machine on car and engine light still on and car losing power. Then I called telling them the light was still on them they said bring car back. I did and now they want $100.00 more because it's the MAP sensor that's what he said to me. What do you think?