Can someone help an idiot?

[goldfixer]

My 'o5 is showing error codes p0263, p0281, and p0291. p0291 is for the #11 injector? I may be dumb, but doesn't this engine only have 8 injectors

[Evil Eye]

The first 2 are for cylinder contribution test failures on 1 and 7 cylinders. Sounds like a couple of bad injectors. Are you sure the last one is P0291? BTW, yes, we only have 8 injectors in the 6.0L engine.

[goldfixer]

I plugged in my SCT Live and it showed a P0291. I just had 2 injectors replaced last week. It was showing the P0263 then, so #1 was replaced along with another one(not sure which one). It ran great for 3 days, then yesterday it crapped out again. Missing really bad, stalled, very hard to restart. When I could get it started it ran like garbage, and coughed out a huge amount of white smoke while it was running.

[jflow730]

When I had two injectors go out I went ahead and replaced all eight. About 10k miles later it left me on side of road with no power and white smoke just pouring out. I would crank it up and pour white smoke for about 15 seconds then die again. Luckily I was about 3 miles from a Ford service shop and come to find out my mechanic had not fully tightened the injectors on the passenger side. How it lasted that many miles fouled up is beyond me.

It had run a little ragged a couple weeks before I broke down but I just thought my turbo was sticking again. Hopefully yours is an "easy" fix.