535i E34 dies at idle, ecu cuts fuel and spark, oil pump dead?

[JINT]

SO what happened today, car dies at idle and doesn't start right away, starts only after like 5-7 minutes of standing. While I'm driving it, it's fine, no problems, i come to a red light, dies in 10 seconds of standing. The OBC sometimes tells me "oil pressure sensor". My guess is there is not enough oil pressure at idle and the ecu shuts down the car, so oil pump has to go. Any other ideas? Can this happen due to oil pressure sensor fail?
M30B35 engine. Car is a 5spd E34.


p.s. changed fuel pump, crank position sensor, rotor, cap, spark plugs, wires, oil pressure sensor, still fack-all. Oil light flashes when i start the car, goes off when car starts, i drive for a bit, car warms up, again i go on idle car shuts off, ecu cuts fuel and spark, trying to save engine from death i guess. Maybe when car is cold oil is thick, oil pump builds pressure, when car warms up, oil gets thin, pump can't make pressure anymore. HELP, is there a way to check if the oil pump is dead?

[ACS_DAN]

What year is your car, depending on the year you may be able to perform what is called a stomp test.

Other than that, all I can say is to check for holes in your AFM boot to make sure there are no major vaccuum leaks.

http://www.bmwe34.net/Wiki/tiki-inde...535i+hot+start

This is a good site to familiarize yourself with.

I know it doesn't directly answer your question but hopefully it leads you on to getting ot the problem.

[JINT]

thanks, i'll check the site, all hoses are new, it can't be a vacuum leak, car runs till it gets warm, only dies at idle after

oh and car is 1990

[JINT]

crank position sensor was bad, changed to new, car starts and runs well.