Its starting to get cold around here and every morning when I go out to start my truck my truck throws a "single/multiple cylinder missfire code" And everyday I clear it with my code reader. Any one have any ideas why it would be throwing this code continually? Im wondering if its from it having a custom program maybe.

 

do ya feel a miss?

 

it runs rough sometimes.

 

most of these phantom misses are due to injectors...if its a hard miss,look more at the p[lugs or wires

 

Ok maybe its the wires, the plugs are newer and the wires are original so thats my next bet.

 

O2 sensor will also throw the same code

 

an 02 sensor will not set a misfire code on one cyl

 

change your plugs that just happened to me. it's fixed now code went away

 

Well it threw a lean bank 1 code and a lean bank 2 code this morning. But I turned the truck off and check the codes again and the only code was the cylinder miss fire. So im not sure what that all means?

 

has it had a fuel filter>?..could it be ****ty gas?