we istall a voltage gauge in this 97 grand prix se after istalling the gauge we notice that the air bag light go on flashing 7 time and then stay on anyone can telme what may happen >???

You either disconnected or disturbed something in the SIRS wiring, or it is just a coincidence. This needs to be scannned with a sirs function scanner for codes, to diagnose this.

i check all wire if there was something lose i also found the wire for that air bag and still freez after flash on a few time is there a way to find out if there is anything is wrong with out going to dealer like i said in previus post the only thing of wire i use was for light and aux power for my voltage gauge and chassy groung

please i need to know if there is a code or key sequance to find out or to reset the air bag system

please i need to know if there is a code or key sequance to find out or to reset the air bag system
No, like I said the system has to be scanned for codes then correct the indicated problem.