Issue After changing Spark plugs / Wires
so I have run into a bit of a issue after changing the plugs and wires on my ranger
I changed the stock plugs after 150k for NGK plugs as well as NGK wires
as soon as I changed the plugs and wires the truck seems to idle great but under acceleration it goes rough then at cruising speed its fine I got a check engine light and pulled the codes i got p0301 which is cylinder 1 misfire I have checked and rechecked the wiring and plugs and they are tight and brand new I tried
I hear a hissing sound from the motor and I checked the vaccum and i notice it bounes from 14 to 17 I am not sure if that helps any
does anyone have any suggestions ?
thank you guys