Drove it to the store, came back and now doesn't start.

Starter working, engine turns but doesn't start.

Looking for the culprit. So far I've got:

-crank position sensor
-fuel pump

anything else I should be looking at?

car has been running fine till today. 160k miles

pp shows two fuel pumps, one main and one aux. any other fuel related items that could go bad?

I'm going to replace the cps anyway, since its easy and seems that they go bad on these cars.

any help would be appreciated.

thx

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1983 300CD Turbodiesel