I noticed yesterday that while doing just below 40mph, my rpms would bounce up and down and i could feel the car almost like bog whenever it did it and it was constant for about 20 seconds. i haven't checked for codes yet, but has anyone run into this problem before?

 

automatic or manual? i have auto and mine does that somtimes at like 35mph when i take overdrive off then turn it back on after it shifts out it stops, i have no idea what it is though although i do know currently i have a bad knock sensor and im replacing it today so i will let u know if it has anything to do with it for some strange reason

 

it's an auto. i just replaced the KS about a month ago. i checked my codes and the only thing i was getting was the line pressure solenoid because of the drop resistor mod i have.

 

i had that problem when my engine coolant temperature sensor failed. u mite wanna check that out.

 

alrighty, i'll check that asap.

 

fuel filter... I had that problem before in a VW

 

just replaced the fuel filter not even a year ago