Billeickmann
TYF Newbie
After chasing codes 0172 and 0172 for months, after trying new spark plugs and MAF, and after trying fuel system additives and checking wiring connections, my Tahoe developed a fuel leak near the gas tank. I took it in to the dealer and they replaced the fuel pump and some "nearby hoses". They also "reprogramed the computer". She has been running perfectly for several months now with no codes or other problems. Many thanks to those who offered support and suggestions. Bill