Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
Hello, the blk/wht wire go to ground, the green goes to the PCM or computer which controls the fuel pump. You can try jumping across #30 and #87 relay terminals to see if pump works. There are several thing that must be check and tested. It could be crank sensor, PCM, etc.. You also need to know if you have spark and injector pulse. and the rest of the diagnosis is with scanner. I will not be able to walk you through everything in order to determine no run without a scanner hooked to car. here is the info you requested.