Salty504

Are you saying the fuel and intake cleaning causes the issue? Cause I had the code before I did any kind of flush. The shop was monitoring the injector while they were doing diagnostics.

1SLOW, Thanks for the info. The shop I had it at did move the plugs and coils around and the misfire stayed on that cylinder. They also bore scoped the cylinders and didn't see anything worth noting. I thought they ohmed out the injectors but it may have just been the ignition coils. I've cleaned my MAF and have had a full fuel/intake systems flush and clean with no fix.

Well hey whenever you got the write up done I'd love to check it out and see if I can knock it out and save myself some labor costs.

Thank you for the detailed reply. They did do a dye test which came up negative. Honestly if you have a write up for these injectors that would be awesome. I've had no luck finding anything on how to replace anything 2014 and newer. I know it requires a bit more work than the older models with needing the hose sizing tool. Only thing that sucks is it's my only vehicle so it's more about having enough time to learn it, deal with first time time curve, and go through the process right.

First post, So for the last 6 months or so my truck has been throwing P050D cold start rough idle. I'm at 36k on the truck and it's a 2015. I brought the truck into the shop for diagnostics. They confirmed that for 1-2 minutes on a cold start condition, cylinder 4 misfires for about a minute or two then stops. They confirmed this multiple times. They verified no vacuum leaks, spark plugs and ignition coils checked out fine, bore scoped the cylinders and found no issues and no coolant leaks, they did a bunch of rebalancing and program checks, verified the related sensors, essentially everything with the exception of checking the injector itself because of the process and time it takes to do so. I know that these newer trucks send double pulses to the injectors during cold start until the truck warms up then it goes back to normal pulse frequency. I guess my question would be what is more likely? The fact that the injector is bad or that during the cold start the injector isn't receiving the pulses? I imagine that all the injectors would be wired in parallel to an extend and that all injectors would essential receive the same signal so I feel that the later is less likely and more than likely the injector itself. But the auto shop won't confirm that the injector is the actual source of the issue because they couldn't test it.