im throwin a code 43 and my car is gettin worse gas mileage than a fackin rustang. now ive taken apart all sorts of shiet and screwed with stufff and asked a lot of local people bout it and nobody has an explanation or help. im also gettin a weird stutter from bout 3-4 grand then all of a sudden it picks up perfect.

any help or comments would be much appreciated, thanks

 

Look here to check for you engine code. 43-Fuel supply system.

 

The first thing to check is fuel presure.

 

i know its a fuel supply system code =wut i dont know is how to fix it...ive tried everything and nothin is matchin up right. fuel pressure is fine, fuel pump turns on, main relay is fine, regulator is brand new, filter is brand new also so i am just baffled as to wut is goin on

 

The next thing I check is the o2 sensor voltage and the spark plugs to make sure their conditions match or not.