Hello all I am a proud owner of my first blazer. I love it. It has a remote start on it. I hooked up 2 orion h2 10" subs with a powerbass 3k watt amp it worked awsome till I got a retarded hair and tried tien in a 15" kicker sub and it blew the big fuse that's by the batery the hot that goes to amp. Again my retarded *** put a paper clip in there it got red hott and after that my blazer wont start. You couldnt here the fuel pump prime I did some research I replaced the ecu or computer off a friends blazer the pump primed and it would statt then die. Now its just turning over with no spark I think the security light is on and flashs after I try to start. Im thinking the bcm? Any input would help. Thank you

 

Fuel pressure is great truck ran great before I out stereo in it. It has aftermarket alarm with a passlock bypass hooked into it. So im not sure the 30 min relearn im doing is helping.

 

Did you check the rest of the fuses?

 

Yup checked them 10 times to sunday..put brand new icm on and coil. Still no luck..bcm have anything to do with it ya think? I replaced the pcm with a junk yard pcm same year model and options. Same serv. Number in pcm also

 

When I swaped my friends ecu wth mine his truck didnt start and mine would start then die. Now with rhis junk yard ecu its like its not getting anything. Im going to the junk yard and grabbing the bcm..