wont start after radiator changed. on 1997 Pontiac Grand Prix GTP

I put a new starter in it and so it turns over now but wont start.Tested all fuses and put in new fuel pump relay.Pump tests fine, has spark. Can hot wire pump so its on at fuse block but wont fire up. antitheft not flashing. pulse at injectors will be checked. Have many wire scematics and testing troubleshooting done but confused. Cleaned all cable ends of battery and starter. any help?

by in Mankato, MN on March 22, 2011
1 answer
ANSWER by on March 22, 2011
what was the fuel pump pressure?? Roy

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