My name is Clyde. I have a 2009 f150 platinum 5.4L with running issues. it started dying when I came to a stop and when I got it home, when I rev the engine it dies, but the engine starts just fine. plus its running rich. it has black stud and lite black smoke at tail pipe. I checked for codes and it had p0150. I cleaned the throttle body, cleaned the MAP sensor, changed spark plugs, change O2 sensor, the one before CAT on the second bank.
after that, I started it up, same running problems, but with different codes, p2196 and p2198 I checked the fuel pump drive module and the connection and everything looks good, plus its the new style. then checked the purge valve, I took off the vacuum line, plugged it off at the intake, then started it and no change. Not sure how to test these items. Any thoughts about all this?

 

Something is dumping too much fuel or blocking air. Did you actually check the FPDM for corrosion?

Check the intake tube for blockage from end to end. I've heard of stuff getting stuck in the snorkel before the air filter.