So I'm trying to fix up a 1993 Volvo 850. It wasn't starting and I was doing several things to figure out why. I tested spark and I'm fine in that aspect. I decided next to check to see if fuel was reaching my engine. I heard the hum of my fuel pump and also checked the fuel pressure by sticking something into the valve after I tried cranking it. Fuel shot out of the valve so I'm confident I have fuel pressure. Next I took out the spark plugs to see if fuel was actually reaching the cylinders. However, when my friend started cranking I didn't see any sign of fuel entering any of the pistons. I was told I would be able to see the fuel shooting inside. Is that true? If so, what do you think the problem is, are my fuel injectors bad? If anybody knows any other problems that could be the case PLEASE let me know. This is driving me crazy.