It's got a miss

["George Procyshyn" <geopro@cyberdrive.net>]

Well where to turn but to my friends on the Spridget list.
I'm having problems with the daily driver.
4 cyl., DOHC, Fuel Injection, 22k miles, car has computers,
starts fine.
Today it developed a miss.
The miss doesn't change with RPM changes.
I pulled plug wires one by one and it's pretty much an even
further deterioration regardless of which cylinder is
unplugged.
Haven't gotten new (bad) gas lately.

Might I have an injector problem?
Any other suggestions?
George P.
Cleveland