I have a 97 blazer with some issues ,

sometimes when i turn the key on the dash lights and gagues wont turn on, and i cant hear the fuel pump, if i turn the key to start the starter turns but the engine will not start. I also put the computer tester on it like that and it cant link.

if i leave the key on a while the dash gagues will usually eventually kick on and it can start it up fine

recently however it died (while driving down the highway) on the way home at night , i waited and eventually it started up , but now i wont drive it util i get it fixed.

wiggling the key doesnt seem to make any difference.

ignition switch ? computer ? loose wire ? relay ? ghost ?

thanks , dave.