2000 pontiac grand prix will crank but not start, have replaced fuel pump, fuel filter, no codes

Fuel pump runs and engine turns over, doesn't catch & start. I apologize, I hit wrong thing it is a GT, not a GTP, is the fuel pump resistor in same position in the GT model, & will that peticular issue show no code when scanner is hooked up? Thank you for answering, We are at a loss, & need our only transportation up & running, please

Could be problem with your injectors. If one shorts out, it disables 3 injectors. Stock injectors have been found to be defective. I replaced mine with replacement, non-GM, injectors and solved the problem.

2 catalytic converter take the two bolts out we need exhaust runs right up to the engine drop it down and try to start your car if it starts I mean you got a bad catalytic converter