Discussion Starter · #1 ·
This 5.3 Yukon was driven nicely in the shop. No problems at all. Soon as it crossed into the shop door it dies and hasn't started since. Pull the plugs and they are covered in fuel. It is sparking. Fuel pressure is at 45lbs. (I know its low, but should still try to pop off I would think). Only codes were p0171, and p0174. Don't make sense. If its flooding then it shouldn't be lean. I'm not really relating these codes to the current situation. Any ideas?