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Hey everyone, I have a mystery problem that I NEED help figuring out. So 2 weeks ago I bought my first import a 1992 r32 skyline gtst type m, with an rb25det engine swap, overall a wonderful car that has been nothing but a pain in the butt. I noticed the problem the first night I drove it (learning how to drive manual on it) I stalled out at a stop sign and she wouldn't start back up. Ended up draining the battery and killing the alternator. Once we got those replaced I started seeing the problem as if I drove the car around for <2 miles and it either stalled or got turned off she wouldn't start back up. Spark plugs were fine so I assumed there was bad gas (smelled like bad gas) and I replaced the fuel filter, cleaned the fuel lines along with dropping and cleaning the gas tank. Also did an oil change with a new filter for the hell of it. Nothing changed. She starts up in the morning after sitting all night and if I drive her for a while she won't start back up when she turns off or stalls. Brought it to a shop that specializes in older Nissan and they said it was probably the PTU over heating and that I should buy a new one and plug it in myself so I save money. I just wanted to get your guys opinion on this. As I said the car will start up and drive fine but it's when it stalls after being driven that it won't start up again. Thanks guys!