I had brought my daughter’s Jetta in and it was determined that the MAF needed to be replaced. After it was replaced, the service engine light still came on. You told me I should go to the dealer and have the catalytic converter replaced for free. I did and the service engine light is now off and it passed smog. Thank you. Some other places might have replaced the cayalytic converter and charged for it. Your place did not and recommended it was still under warranty with 93,000 miles on it – thank you. Here is a volksrod that my step-dad in Las Vegas just finished building.