Only Cylinder 1 Firing? S52 OBD2

[Boise]

I was hoping to not have to post one of these threads, but oh well. Tried to start my S52 OBD2 tonight and I can only get one cylinder to fire. Its hard to tell, but I think its number 1 thats firing. I have not checked the spark on the other 5 cylinders yet, I'm taking a break and will do that in the morning. Any other ideas? Checked my grounds and cleaned the mating surfaces for a good contact. There is also a little fuel if I put my finger in the exhaust port down by the valves on cylinder 1, and the rest are dry.

Here is a video. You can also hear the ICV make some noise before I start the engine, is that normal? (its kind of hard to hear).

[Jezza]

The ICV noise is normal. Thats a weird problem, on my s52 ob2 swap my injectors wouldn't fire due to a bad dme ground. Im assuming you checked that though? Let us know if the other cylinders are getting spark.

[Boise]

Well I spent a little time in the garage today. Wasn't able to test the spark plugs because my friend couldn't make it over to help today. However, I suspect that its fuel related since I have fuel only in the #1 port. I tested the injectors and only #1 was squirting. So I flipped #1 and #2, and now #2 works and #1 doesn't. I think I have 5 bad injectors. I tested the resistance on all of them when I had the engine apart and they were all within spec. I guess I need to get a set of known working pink-top injectors on order.

[Boise]

Turns out I was right, 5 of the injectors were bad. It fired right up and idled nicely. Now time to figure out the exhaust system.