[Genopsyde]

well let's do all the troubleshooting that can be done without costing you money. I know space is tight, but let's see if you can do this.

while the car is running at idle, unplug the injector connectors one at a time and listen for a change in idle. If the idle does not change for the worse on any cylinder, then you have a misfire on that particular cylinder.

I only suggest the compression test to rule out internal engine failures.