2017 Adaptive Valve Delete
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Correct....the end user can't reach to Realtruck directly like they can if they purchase a Bak, Undercover, etc... It has to go through a dealer. -
By Matt Parker · Posted
It is 4wd. shop told me it is the slip yoke. But not sure. -
By contrabombarde · Posted
No, I did not tune out vvt. From what I read it should still be able to run without it, it'll just lose some torque/power. I can see how that would make it not run correctly, but why would that cause the faulty MAF readings? EDIT: I just ran a quick test and checked, and as I expected, the computer sees that the VVT cam phaser solenoid is not present, and throws a code for it, and does not try to change the cam angle at all. Commanded position just remains at zero, 100% of the time. This makes me think that the VVT is most likely not the cause of the problem though if anyone has a different/better explanation, I'm all ears. UPDATE: I was able to find that my scan tool does indeed support reading the frequency (hz) off of the MAF (I thought it wasn't supported but turns out I just didn't know where to look for it). I noticed that regardless of engine state it always however this Is not what I observed with my multimeter. Like I said before, the MAF seems to put out a normal signal during cranking and then the signal drops to a very erratic reading once the engine is running. It seems from what my scan tool is telling me that the ECM is not recognizing this at all, and just reads 0 Hz 100% of the time. This pushes me towards the the PCM itself is faulty. I I have the PCM out of the 2007 donor vehicle, which I may try to connect and program (it's only ~50 bucks to get the software for a one-time programming) -
Did you tune out the VVT? 07-09 they did not have VVT. 2010-2013 they did. If you haven't tuned it, its trying to adjust cam timing. -
GMT-900 is not Global A.
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