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I made some videos this morning while running some power balance test on my truck. All these were at idle. If I turn any injector off the engine misses and stumbles. As soon as I turn it back on it smooths out. Some are a bit lower on the test but does that mean they "must be replaced" or they "should be replaced" or I would not worry too much about them at this point? Sorry about the glare in the videos.
I don't see any deep dips but #4 is not the happiest camper out there.
Looks like most settles down once warmed up.
If you look at mine you can see that #7 & #8 are unhappy.
Both were replaced this last spring. Truck runs better.
I really need to do a new scan and post the trace.
Those injectors don't look bad at all. They aren't the best, but definitely not ready to be replaced IMO. Trying some archoil with fresh Rotella T6 should help.
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