1995 Cadillac DeVille 4.9 liter engine - wont start
Hi. My son has a 1995 Cadillac Deville that will not start. It cut off on him so we had to tow it home. Previously he would have to turn the key a couple times before it would start. Took it to autozone had charging system check and it showed no problems. It sat for three weeks before we tried to figure out problem only thing we did was periodically try to start. It would turn but not start so I thought it was possibly a fuel pump issue. Just found out how to check codes and it has two. P012 and P020. P012, which is no signal to the distributor and P020 is open fuel pump circuit.

Any suggestions on what to check for next would be greatly appreciated. Thanks.