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aeroforce gauge is lying



I think to be conclusive, you'd have to test more gauges. I don't have one or a tuner.

Logically, I wouldn't think it's a variance in vehicle wiring but the actual gauge. Those things probably fly off some line and who knows. Parts get dropped, static is discharged.. could have a wrong but similar looking part in one.

Regardless of all that, I don't think higher lift wouldn't create that much boost leakage on a .4" drop.
 
SaukRapids said:
I think to be conclusive, you'd have to test more gauges. I don't have one or a tuner.

Logically, I wouldn't think it's a variance in vehicle wiring but the actual gauge. Those things probably fly off some line and who knows. Parts get dropped, static is discharged.. could have a wrong but similar looking part in one.

Regardless of all that, I don't think higher lift wouldn't create that much boost leakage on a .4" drop.
Click to expand...

They don't fly off an assembly line... They are built basically one at a time by one guy in a commercial garage...

Anyway, OBDII runs on a single wire Serial data bus. That means one nugget of data at a time, even if it's preeeety fast at it. And to make it worse, it's not just blasting out data for anyone to read, the gauges are requesting it, so no two gauges are going to read the exact same at the same time. Even having one gauge read boost on both screens can give you different numbers on each one.

I've shown with my triple set that each gauge will read the same when solo.
 
You have to change the data speed on them, it's the setting. I think the user manual shows how to do it. Be
 
Pat from Aeroforce came on and said the data bus transfers data at 40KHZ, which is pretty slow. Newer GM vehicles transfer data over 10 times faster, so because one gauge is showing one speed, there is a lag big enough to through off the readings.

I'll have to check the settings of the data transfer rate.
 
yeah each data block takes time and samples later than the previous

excessive PID quantity actually ****s with the pcm's primary function of running the engine calc's
 


Electrical sucks in these cars plan and simple. Baud rate sucks and can be messed with but can make things worse if not correct.
 


classic marshal response lol shut one of the aeros off then instead of running 2 showing the same info. what is the point if the redundancy anyways?

no need to run a tq app nerd just dont set both aeros the same.
 
the cable I use is an aeroforce dual gauge cable, so I would have to run more cables for one to work. more work that I don't really feel like doing.
 
wtf youre missing the point here. why are both aeros disaying the same info to begin with is my point. i dont have a fuel gauge for my fuel gauge or a speedomoeter for my speedometer.

yes the car has a factory lego block boost gauge thats worthless so i get using an aero to display boost.

the oddest thing i find about your whole post is about a boost reading of all things to monitor and have a variance who gives 2 sh1ts about boost its arbitrary. read which ever your little heart desires and stick with it.

now if you were looking at knock or something and got 2 seperate random readings then id be concerned.

as for the boost who gives a crap if they are not spot on comparing the 2.

ps im just busting your balls because the purpose of this thread and the point of monitoring boost with 3 different gauges including the factory lego block display makes me laugh.

hey marshal i know you like having a boost readout for your boost readout to make sure the factory boost readout is right so im going to go ahead and put 3 more aeroforces set to read boost on the passenger side pillar and maybe 2 in the glove box and 2 more infront of the shifter and maybe 2 on the steering column even.........

just think how fvcking awesome that would be boost gauges everywhere all reading something different.......

lololololol.
 
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The PCM spits out data at a pretty slow rate so it's possible that they are getting information at different times and that's why you are getting different information as mentioned above. The maximum rate I have seen is every 173 ms so you probably not going to get the same data on something is changing quickly over time.

Jeff
 


One gauge should be set with a higher rate than the other. One is the master and one is the slave so to speak, it's one a little lower to make that the important stuff is being read at the right time and the other shows not so important stuff like trans temp. I remember this from when they first started with the dual setups.

You swap the rate settings to check if they match up that way. Also can unplug one from the back to shut it off.
 
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