changed ign.switch...wont stay running
 

I just changed the ign...switch on a 1998 1500 Z71..... I mocked up everything before I put it all back together.....light switch....pass air bag...cargo light.....Als I did not mock up the air bag in the steering wheel....No Gauge lights come on when I turn the key...no check engine,check gauges or security lights...I turn it over and it fires stays runnin for a couple of seconds and dies.....It ran like **** with the old one ....it least at ran....any help...thanks

Is the security light flashing?

nope....the only thing I didnt mock up was the air bag....