Won't start

I replaced the engine temp sensor when I had the intake apart. Which signal (missing) should I be looking for?

While driving my car down the street it just loses power. I was driving fifty mph down the city street and the car just shut off and would not restart. I have put a new fuel pump and filter and a new mass air flow sensor. Still can not find out what is wrong.

I replaced the ignition module. The throttle position signal looks good and the crank speed shows up as about 200 rpm. Each hard reset will let it fire a few times.

Intermittently when I turn the key the car will crank but not start. This happens more often when the car is warmed up. I've noticed the following: If I activate the turn signal before I try starting the car, when I try starting the car and the turn signal comes on the car will start. If the turn signal does not come on the car will not start. It almost seems as if the ignition switch is in the accessory mode when it should be in start mode. Also if the turn signal does not operate, I can't hear the fuel pump start up. If I hear the fuel pump, the car starts every time. The car starts without a problem about once every 4 times I get in it.
Another problem which may or may not be related, is the cruise control intermittently drops out.
These problems are making me sick.

2003 Pontiac Grand Am

Changed the water pump in an 03 Grand Am. The car wouldn;t start- battery was dead. Boosted it and got it running, shut it off and now it won`t start. (Battery will not crank) What is going on? Some security code issue?

I have a 2003 Pontiac Grand Am. Earlier this year it began having starting problems and I learned that the fuel pump was not turning on sometimes when I put the ignition switch to on. (Wouldnt hear it) This didnt seem to be a problem since I would just cycle the ignition switch off and on until I heard the fuel pump turn on. However, one day I lost all power while driving and had to get a tow. The mechanic told me that is was my fuel pump and I had that replaced. It worked perfect for about a month and now the same thing is starting to happen; at times the fuel pump doesnt always come on so the car wont start (usually after it has been running for awhile earlier). I have checked the fuel pump relay and it clicks every time the ignition is put in "ON" even when I am having the starting issues. Do you have any ideas what this could be? I cant believe that it would be a bad fuel pump considering it worked fine for a month and now the same problem as before has come back. Thanks

Dave

My 2003 pontiac grand am se 3.4l died while driving and wont stay running when I start it?

No it starts then putters then dies barely a few seconds! It died while driving almost as if it ran out of gas but we just put gas in it a lil early in the day.

Ok ill go rent A SCANNER BUT HOW DO I CHECK THE FUEL PRESSURE SPARK INJECTOR PULSE?

Electrical problem
2003 Pontiac Grand Am 6 cyl Four Wheel Drive Automatic

I always have trouble starting my car, I wont start when I try to crank it, it will turn over but it wont start. I've been having to unhook my positive batterie cable then wait for about an hour and then when I hook it back it will start like nothing ever was wrong with it. What do you think my problem is? About 3 months ago I had to have my computer restarted it was kind of simular but at that time my car would make any sound.