p0278 is the injector junk?

[scotty2280]

is that what this code means?, cylinder #6 contribution/balance. looking for any insight. the truck rough idles somtimes when i come to a stop.(shakes pretty bad) i usually have to gun it for awhile to clear it out. it did it worse on xtream street so i put it back to stock and it still does it.

[scotty2280]

ttt......................

[scotty2280]

anyone????

[WEWILLE]

It most likely needs an injector. But you should check your fuel pressure, ficm voltages, and you can at the bare minimum inspect the wiring harness for chaffing. I like to current ramp the injectors with my osciliscope but you can use a meter if you want to check voltage to the injector. But yes it probly needs an injector.

[scotty2280]

fuel pressure is good 58psi i just replaced the ficm about two months ago. what should the voltage be? and what side is the number 6 injector on? ill probably just end up replacing it. thanks for replying to wewillie!

[WEWILLE]

48V 20A. The number 6 is on the driver side second one from the back.

[scotty2280]

thanks again wewille, now to find an injector!

[WEWILLE]

No problem, glad to help out hopefully it works for ya!! But like i said before most of the time it will need an injector, but sometimes its something else.