I have a 1998 Pontiac grand prix GTP Starts up and then dies every time over and over?

Answer 1

First check to see if the maf sensor is disconnected or faulty, it is located usually between the air cleaner and the throttle body, then check your tps.

If both check out ok then the fuel filter or pump may be to blame.

The maf sensor detects the flow of air through the intake and the fuel flowing through the injectors is adjusted accordingly. At start up the system is in a different mode than when running but after a few seconds the maf readings are used, if no flow is detected fuel is cut off. ..........................

The most likely source of this problem is the failure of the fuel pump resistor, a common issue on the GTP only. This will allow the fuel pump to prime (using the high-speed circuit), which will allow the car to start. However, once started, power is transferred to the second circuit which contains the resistor, and the vehicle will die shortly. It is a ceramic horse-shoe shaped object attached with a single bolt to the area near the horn, on the right-side of the vehicle underneath the battery, accessible from underneath the vehicle. The connector is accessible by removing the washer reservoir, possibly the battery. You can test the failure of the resistor by unplugging it, and placing a jumper across the connector. The vehicle should run properly with the jumper in place. Order and replace the resistor, about $40 or so, for a proper fix.