This method when you disconnect the MAF and use that as a guide for what is bad or not.
I don't understand it, can someone tell me how it's works?
In my head and my experience this will not tell if the MAF is bad just if you have something else wrong.
Shouldn't the car jump in to LIMP-mode when the MAF is disconnected and if the car works fine you have trouble somewhere else in the system?
if you have an issue with the MAF sensor with a GM car it will be very hard to start or take several cranks etc you can run it without it.. it will just run at default non-optimized conditions...(open loop and run rich)
with my broken sensor..
it will randomly FULL throttle bypassing the Rev limiter straight to 6,000 RPM(this happened 3 times) I had to put it in neutral and shut off the engine..
it's technically not a true "run away " but unintended throttle "action"
Also not unintended acceleration(since it did not increase in speed)
I willing to bet it's a cracked soldering joint back in 2008 or so they were switching over from Leaded solder to lead free soldering they did not work out the bugs with the soldering mix so it was pretty common the soldering joints to crack..there was many issues with the clusters from 2007 to 2012 because of failed soldering joints.. sure this was an issue inside of "other parts" as well
Mid throttle i.e 3k rpm randomly (few times)
a light throttle 1500-2500rpm randomly several times
by it self
it's pretty clear throttle position sensors "the safety check" can be bypassed or overwritten by the MAF sensor.
https://easyautodiagnostics.com/gm/4.8L-5.3L-6.0L/electronic-throttle-body-2
If I built a powerful enough RF transmitter I could FULL throttle or stall any GM vehicle remotely..
by exploiting the MAF sensor output signal. (equipped with electronic throttles made by GM)
some one really fudged up in the software dev department
