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1999 GTP - Another Stalling Issue After Running For 5 Secs, Not Resistor Though

R

RareRenegade

New member
My 1999 GTP (128K) seems to be doing what i have read a lot about on here; stalling after starting and running for about 5 sec. I have bent the tab on the fuel pump resistor out (#85) and no change occurred. I did use a fuel pressure gauge on the fuel rail and it reads about 43 PSI with the ignition on (not yet started) and seems to hold that pressure well. After starting the engine, it'll run for about 5 to 10 seconds and the pressure gauge will start to drop to about zero in which the engine stalls. Turning the ignition switch off, then back on, the fuel pressure goes right back up to 43 PSI again which leads me to believe that something isn't telling the fuel pump to keep running to keep the motor running (i do hear the pump click on when the key is turned). I'm kinda stumped as to what the problem may be and appreciate any input.
 


You have a security issue. When the security system is tripped or it doesn't like your key, it'll prime the cylinders and then will not turn the pump back on or allow the injectors to run after that initial prime.
 
Thanks for the reply. Any ideas as to how to track that problem down by chance or is there a service manual procedure to trouble shoot it? The previous owner said that it would occasionally shut down but was still drivable and now it has gotten worse to the point that it's not drivable at all which leads me to kinda question the security issue as the culprit. No disrespect intended, just throwing it out there. Thanks again.
 
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