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Message: <blockquote data-quote="bluex" data-source="post: 1354444" data-attributes="member: 20470">Are there any codes? A bad sensor will throw a code. I had a weird problem on my wife's suburban where it would die on her with no warning after coming to a stop at a light or sign. Fuel pressure was always good when I checked it an held steady for 45 mins or more. I tried a tune up, New crank sensor, fuel filter. I was about to give up an take it to a shop but I borrowed a better fuel pressure gauge with a longer lead. I drove it for 45 mins an got it to stall. When it did it barely had 20 psi of fuel pressure an wouldn't build more than that until it sat 20 mins or so an cooled off. First time I've ever had a pump do that an I wasted almost $200 throwing other parts at it. Long story short if you don't have a code for bad sensor don't change it based on a hunch. Any auto parts store can load test your alt an battery for free. I'll bet it's your fuel pump....</blockquote>