Gents could use some help. Have an 03 f150 with a new 5.4 about 500 miles on it now. I had a po171 and 172 code and ended up doing a smoke test to find an injector 0 ring leaking and a vacuum leak at egr. Fuel trims in pic 1.
I fixed those and got code po406. When it set the code I saw fuel trims improved but it is still burning rich. I should mention I have not drove it since I fixed those leaks. Any ideas enter to go from here? Egr hold vacuum also and runs rough when vacuum is applied manually to egr valve when at idle. It does have a minor engine miss