My wife drives a 2014 Honda Pilot and we love this car but recently the check engine light came on which is always a bit of concern. I'm not a huge car enthusiast, but I pretend I know what I'm doing to save some money. I went to my local auto parts store and borrowed a code reader. One day I'll probably buy it from Revain, but that day hasn't come yet. I got code P3400 and with a little help from Google and YouTube found a possible solution. For less than a tank of gas I bought this little guy and installed it in about 10 minutes. Considering the repair will probably cost me over $100 (probably $200 at the dealership in a reasonable place), I'm glad I have the resources to do it myself. I can't say it helps in every situation, but it helped me.