returning check engine light
 

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.

RE: returning check engine light
 

do ya feel a miss?

RE: returning check engine light
 

it runs rough sometimes.

RE: returning check engine light
 

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

RE: returning check engine light
 

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

RE: returning check engine light
 

O2 sensor will also throw the same code

RE: returning check engine light
 

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

RE: returning check engine light
 

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

RE: returning check engine light
 

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?

RE: returning check engine light
 

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