100 miles on half tank

[contourfreak22]

what do i ned to do to get my gas mileage back? i know my filter needs to be changed (fuel), the oil and atx fluid was changed, the ford racing wires i have has 20k on them my spark plugs has 30k on them and i just changed the air filter my pcv valve still stock i bought one but never replaced it. i have no leaking vacum.

[hectik1]

o2 is changed right?

[contourfreak22]

i never did the cel light isnt on for that.

[hectik1]

CEL may be causing the poor gas mileage.

[contourfreak22]

CEL may be causing the poor gas mileage.

but i dont have a cel now

[Trademark]

maybe you have a slight gas leak? with that horrible mileage you might want to check your tank and maybe you have a bad spark plug because I can only see a 4cl running on 3 being that bad of mileage.. gl bro

[contourfreak22]

i havent smelled any gas. i'm looking on getting some plugs for the car anyways thanks for replying guys.

[hectik1]

Fuel pump on it's way out?

[Tony2005]

"Location: Granite Falls, WA"

What's the weather out in Granite Falls? Have you been using the heat with DEF or DEF/FLR? That also turns on the a/c unit.

[contourfreak22]

"Location: Granite Falls, WA"

What's the weather out in Granite Falls? Have you been using the heat with DEF or DEF/FLR? That also turns on the a/c unit.

my compressure is by passed with a smaller belt so no way. also can i take my car into shucks or autozone to scan my car with out a cel? i heard i can but i went there and they told me they can not do it with the cel off. thanks for your replies.