OK, have a 1995 blazer (obd 1.5)when you turn the key on, fuel pump will not prime up, has no spark when cranking, and for the kicker, NONE of the dash indicators, airbag, CEL, 4X4 etc. will come on when the switch is turned on. It just truns over. Also when you get in it at night, close the door and turn the key on the overhead interior lights won't go out. Fuel pumps 3 or 4 months old, replaced FPR awhile back, Cap, rotor, plugs all new, checked out all relays and fuses. Yesterday it was running as smooth as glass.I am lost, any ideas, help!!!!!!!!

 

First thing I would do is test the battery and check the cable connections to it to be sure they have not corroded.

 

All that is fine, even tried a stronger battery, nothing...
I think its a component somewhere


*Just read a post from Kyle on ignition switches and this sounds very much like my problem. I was thinking either this or the ECM.
Anybody ?????

 

The ignition switch would be a suspect to me.

 

x2 on the ignition switch. Sounds like one set of contacts inside is just not doing anything.

 

Thanks, will update later