Headlight control switch.
how come your service engine soon light is on?
I have a code that I've been trouble shooting I know the code just been trying to solve it.
what does it say is wrong with it??
P0430 three way catalytic converter. i.e. the o2 sensor behind the cat sensed something it off, but isn't sure what.
oh so dont you just need to replace the sensor than
no need to figure out what is making it sense that
oh sounds like a real problem
Not really it isn't really effecting how the truck runs.
oh, sounds like nothing to worry about than.
Yup just need to change spark plugs.....