Possible misfire

[charlie]

So my trooper has been sitting basically since December I always run high test gas and its run here and there at idle from time to time last time it ran seemed ok today while idling it seemed little choppy and giving it gas seemed to be breaking up a little kinda like a misfire I have about 1400 miles on it I plan on dumping the gas and will inspect the plugs I have ngk iridium plugs in it been there since 1200 miles know also have a fuel programmer on stage 1 factory never have changed it thoughts anyone????

[hfrick]

very rare that we need to change plugs in them...not to say never...I would put fresh fuel,then check your fuel pressure ,if that doesnt help,disconnect the ground (or power) to your fuel controller to put back to stock...thats where I would start...Hardy

[charlie]

So I put 94 octane in it and Lucus injector cleaner and pulled the plugs they were black!!!!! I have never changed my fuel programmer setting always been the factory setting started it up was little ruff for a few seconds but now seems much better

[hfrick]

the fuel controllers dont always work well right out of the box..they are designed to add fuel ..thats why I like to set them up with an o2 sensor...if you disconnect power to the controller then start it will run the joyner factory fuel map untill you power fuel controller back up

[charlie]

Ok I will give that a try see the plugs were real shitty looking and this is the first time I have had an issue but this is and was the longest the trooper sat was a long winter and needed repairs