I have it all hooked up.. it has power but its not reading anything. Its shows everything but theres no values. Anybody know what the **** is going on? Is it defective?

 

Is the car on? Just checking. It will only show data if the car is on to send the stats. Cgeck the OBD2 connection. Any pins loose/missing? Also, since the gauge grounds to the OBD2 port, check the cig lght fuse in the engine bay fuse box. It may be blown, definitely if you try to use the lighter port directly below the radio. For some reason, the OBD2 and cig lighter are connected by fuse GM

 

Yes the car is on. Would the gauge not turn on if the fuse was blown?? I have the power tapped in the sun roof fuse in the passenger side and it comes on but just doesn't show the numbers. Everything else works, like the menu and the setup and whatnot. But at the main screen it says(for ex iat2 ) and then underneath it shows nothing. Isn't there somthing with a jumper i'm supposed to remove? i didn't see a jumper . whats it look like?

 

u have to set it up in the settings for which parameters to read

 

i did that but under the parameters its not showing any data

 

I think you have a problem with it, I'v had 2 of them and just plugged them in and they worked mint. You should email Aeroforce. You may not have one that is compattable with the lsj.