Code P0106 and misfire?

When I was cleaning the injectors, I noticed they weren’t misting much. Some were coming out with some mist and a little bit of a stream. But it only came out with somewhat of a stream when I applied fuel pressure from the carb cleaner can. If I applied only some pressure it was misting. I had originally checked fuel pressure before cleaning injectors, and it dropped way too fast which is why I tried cleaning them. As well as replacing the fuel pressure regulator I haven’t tested fuel pressure since I cleaned them. I’ll test it again during a weekday this week and I’ll let you know. When I first removed the upper intake manifold it looked like there was a small pool of fuel on the lower intake manifold area. So, I assumed that it was from the fuel pressure regulator because that’s where it connects. Could leaky fuel injectors somehow cause fuel to get in the base of lower intake manifold?

Zane

Here is a video of the leak down test and also the car at idle. The gauge is bouncing around is that normal?

So, I ended up doing a long leak down test of about 15 minutes and it initially dropped from about 50 PSI to about 40 PSI in a minute or two but then it held at 40 PSI at about 40 PSI only a very small drop for the next 14 minutes. I ended up pulling the upper intake manifold off so I could access the fuel pressure regulator and the I injectors. I jumped the fuel pump relay and removed the vacuum line for the fuel pressure regulator. It was not leaking. I also checked the injectors for leakage, and they were not leaking as well. Then I cranked the car over a couple times and all injectors were spraying and the spray pattern looked the same on all of them.

Thank you,
Zane

I am going to attach some videos. Of the distributor as well as the lower intake manifold ports where the injectors are located. I had have replaced the plugs and wires and used a spark plug tester and was getting spark to the plug when this initially started. Both on the bottom of the lower intake manifold where it only gets air not fuel and in the injectors port area were wet with what smelt like gas.

Here are the videos.

Cylinder 6 wasn’t wet but cylinder but cylinder 4 and 2 appeared to be wet. The upper intake manifold gasket looked alright, but oil didn’t run through that part. I didn’t take off the lower intake manifold because I will have to take out distributor and also take off fuel rail. Do you think it is the lower intake manifold gasket? Could that cause my rich condition though?