3.2 Misfire, running on 5 cylinders

[ganun]

Running great for years then on start up one day it's not firing on all cylinders.
This is what I did that worked really well to diagnose the problem.
Shut the engine off right away.
Get your IR temp gun.
Start it up and shoot the ir gun at each individual exhaust outlet.
Right away the others were around 350F while cylinder #2 was at room temperature.
Shut it off and pull the plug wire off the offending cylinder.
Check for spark with a spare plug.
Spark good. Therefore bad injector.
Sent the 3 injectors to RC Fuel injection.




Nice report
Rebuilt injectors installed and engine back to normal

[mo-mon]

Methodical troubleshooting. First time I had this happen was when the magnecor wires were jumping out of the spark plugs. Installed Supertec connector holders & no problems since.