Testing this MAP sensors is out of our reach without certain equipment, sorry.
This guys where I did my MAP change, even told me, in doubt they take new item/ sensor.
Yes, it can be cleaned with lots of rubbing alcohol and Q- tips (I take the very long ones from my wifes praxis which are used to do pap smear test) but very tender not to bend or brake this tongue-like feeler inside. I do not have expert knowledge there. Maybe I was just lucky when I cleaned mine.
Gurus there told me a thin coat of muck or grease renders them disfunctional.
Surprises me, intake flange (black plastic pipe) off, NO START, would not know why?
We need a certain ratio of fuel versus air to have a startable mixture within our cylinder (1 vs 14.7 parts) maybe your mix was too rich and dampened the spark, have no better explaination.
Pls see pic
Q: do you have at the red arrow position a screw in it?
Q: do you have the same sensor holder position as under green arrow?
Because if you had this under green out, it's nearly impossible to readjust without electronic equipment.
...and a screw in there at red could block throttle movement to a certain degree...