I have a question for all of you! My 1998 pontiac grand prix gtp supercharged is starting and stalling after 3-4 seconds, however you can get it to run if you crank it 4-5 times. We put it on the machine, and got Codes p1629 and P1573. I am at a loss at what this could be because in Dec,2012 I had the aftermarket security/remote starter removed and a new remote starter put in, no security. This has been going on for about a year and a half, with the car starting and stalling 3 seconds later whenever it wants to. Any ideas? In January I also had the key tumbler replaced because it was broken. This is still happening.