Which code should I address first? Knock Sensor or Cyl 1 missfire

[Goofball]

I have these 2 codes. Which should I fix first? I lost my job after 18 years Tuesday and money is an issue.

thanks

[HandsonMaxima.]

go for the misfire, as i constantly hear here, KS is a ghost code, maybe the misfire is setting it off, my 2nd cyln misfire set off my KS, fixed with spark plugs, a new oil seal(to fix leak slight leak) and injector cleaner. i used them all at once to make sure i didnt have to go back to it. thats all i can think of, im sure more will come and happily give you their input.

[ThreePointO]

yea 150,000 things can set off a KS code.

[ChrisMan287]

Missfire > knock sensor. If money is tight just stick a resistor in the KS harness and your good.

[Maximeltman]

missfire 4 sure.

[Snypa]

both are kinda critical.but i wud say misfire.

[erty67]

fix misfire, clear code, drive 100 miles or so, recheck for codes to see if knock sensor shows up again (it won't trigger the CEL alone)

[Goofball]

Missfire it is. Thanks guys for all your advice.

[Viperoni]

Definitely misfire.