Interesting, haven't heard of this interface.
I hardly ever use an actual tech2 anymore just tech2win with either an mdi, mdi2, or a mongoose.
That definitely looks like cracked gm software.
Mdi and mdi2 are the gm interfaces.
Mdi manager is for setting up those interfaces(wifi...
My 2 cents as someone who owns and repairs tahoes
I prefer the 3lt. Pretty close to ltz luxury with out the ridiculously expensive to repair suspension.
The iron block 5.3s seem to hold up better, mine just hit 260k miles with just the afm turned off.
The flex fuel fuel pumps seem to hold up...
Sorry didn't pay attention to which section I was in. Low oil pressure at idle is pretty much a weak pump or some sort of excess leak such as drawing in air on the pickup, loose bearing clearance, or a leaking oil passage.
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