Seeking Windstar Help
I have a 2000 3.8L V6 Windstar, that gave me the following error codes: P0171 & P0174. I have read the threads about the codes. I have replaced all 4 of my O2 sensors, new EGR Valve & Gasket, new fuel filter, but to no resolve with my problem. I even bought a new MAF sensor but when I installed it, it did not resolve my issue so I took it bakc for a refund. (those things are expensive). The van idles fine but when you engage it on drive it bucks like a horse and even backfires. I don't know what else to do. There are no visible leaks, I'm thinking a vacumm hose that I can't see is loose or something. Any help is greatly appreciated. Fellow Air Force member.