I have a 2003 MAZDA 6i 2.3l DOHC 16-VALVE VVT with an automatic 4 speed trans. I bought it used a few months back and am chasing down a P0171 code.
So far here's what I've done:
1. Throttle body gasket
2. Intake manifold gaskets
3. PCV valve
4. PCV valve hose and gromet
5. Crankcase gasket
6...