does not work

[Tactical]

My 2004 C180K m271 is fine up until I let go of the handle, at which point it starts misfiring and won't stop till I switch it off. Once it starts up again, I'm not sure what to check first. Any suggestions?
The lowlifes just busted my door window in an attempt to take my radar detector. I'm upset with them.

[Lemmand]

Is there power to the EML station? You'll need to know the error codes in order to conduct most things. An injector cleaner, like Redex, might be worth a shot, though. Do you happen to have the car's mileage?

[Tactical]

Missed EML, floored it again tonight, and everything appeared to be fine.
About 180 xxx km.
Have a day or two off, so I'm going to go for a nice drive.

Just lately, I cleaned the injector.
It misfired severely during that process, as if it were about to stall or stop but then turned off.

[NarrativePsych]

Codes pertaining to the misfires will likely remain in place.Is a code reader available to you?

[Banman]

At what point did you last change the spark plugs? If altered, would those be the right ones? Did you change the fuel filter recently?