electrical problems

[Mikedohc]

Good afternoon from Madrid. I'm finishing mounting the 1991 chevy k5 with tbi, I'm doing very well, but I have an electric question.

After removing the complete engine and putting it back in, I connected all the connections as they were, but although the car gives the contact, the starter motor does not rotate, nor does the service engine soon light come on.

I have found that if I connect the positive of the alternator to the general positive, everything works fine. But that should not be so. this is the picture:

http://ibb.co/d6qMDR

Could it have a blown fuse?

I have also seen that a cable of the ignition coil of white color is not connected to anything, in the manual says that it has no use, is it normal?

photo:

http://ibb.co/nh8itR

I would like to know if someone can send me an electrical diagram of the car, it's a 1500 k5 blazer 5.7 V8 350 CID 1991

Thank you

 

[Justin V]

There are built in fusible links in the electrical harness. They appear to be nothing more than a section of wire that was spliced in, but are designed to fail before the rest of the wiring in a shorted circuit. The fusible links are usually right off of the main lug on the starter. When I removed my engine and reinstalled, I had a similar issue as you, and found that one of the splices between the fusible link and the wiring had come apart.