I got my car back together after the PI intake swap, but with one problem. I had a little bit of leak on the front 2 injectors on the driver's side. I decided to take the injectors out and put new O-rings on them. One of the injectors had a broken disc and the other one I broke. I decided to grab some spare injectors that I had in a '97 Mustang engine (42k miles and sitting for last 5 years). I swapped out the O-rings and stuck them in there.....now the car will hit like it is trying to start but won't ever crank up. I think that there is some gunk in the injectors from having 5 year old gas in them. My question is how can I clean them without having to take them back off the car?