help car dies when warm

[nate1]

ok so i start the car every thing is fine ill drive around till it hits normal op temp then like 5 min later it stalls out and sounds like im using a 2step when it is runing, its a na ka and ive check fuel pump looks ok, so maybe 02 sensor? or maf? any help would be nice i cant really work on it due to this insane rain we have been having every single day. ive swaped out the ecu and the problem is still there and ive put new pugs in

[Mishkin_707]

After it dies, will it start up again? Do have to wait til it cools down? I always tell people this cause it's happened like a million time to people, might help you too, disconnect the coolant temp sensor the two pin sensor, single pin is just for the gauge should be by the coolant bleeder, then how that goes

[nate1]

it will start right up again then stall unless u give it gas

[nate1]

bump.......

[Mishkin_707]

whoops sorry, have you tried the temp sensor thing yet? mine did this and i didn't know why it would be running perfect until it warmed up, then when i would come to a stop it would die, it wouldn't start until i held the throttle, it ran so badly and i couldn't let go of the throttle or it would die again, i took my car to work (dealership) one of my tech buddies said he would look at it, as soon as he pulled it in the shop after he warmed it it died, he unplugged the temp sensor and bam! it started right up and stayed in, he told me his 300zx did that a few times and a few of his buddies 240's.

he told me what was happening was the temp sensor malfunctioned, so the ECU wasn't getting the signal that the motor was warm so it kept feeding extra fuel as if it was in the warm up stage causing to motor to flood as i drove it, the temp needle will read fine because there is a single wire sensor that gets warm and moves only the needle on the dash, like a thermometer, the coolant temp sensor is the one that sends signal to the ecu, so if you haven't tried it yet, i suggest ya do, wont take more that 5 mintues of your time to test, remember unplug the coolant temp sensor, should have a red plug and it should have 2 wires this is the one you need to unplug, not too hard to find its on the intake manifold in the front of the motor by the valve cover there will be another black sensor plug with 1 wire, thats just for the temp needle on your gauge cluster.

[2fast4y0u]

im having damn near the same issue but mines on a sr red top.

[nate1]

i thought about that but b.c it was acting funny when it was warm instead of cold i just brushed it off. im going to be mad if thats it, thanx man

[Mishkin_707]

Lol same here, I felt so dumb when my friend found that simple problem, let me know what happens