Hey all first post here,
Recently purchased a 2016 mk7 st-3 fiesta running puma speed stage 2, I noticed a problem when you put foot to the floor in 4th 5th and 6th the car shudders and misfires in quite a rapid succession.
Immediately I assumed spark plugs so got them changed but problem still persists no engine management light is present the blow out valve changes its tone to a slightly more high pitched noise when it shudders but I'd assume that's normal in higher gears.
I can still floor it to a certain point but there's a point where it will struggle to keep pushing.
All help appreciated
Note not sure if coil pack or wiring triggers engine management as they are the individual coils.
Recently purchased a 2016 mk7 st-3 fiesta running puma speed stage 2, I noticed a problem when you put foot to the floor in 4th 5th and 6th the car shudders and misfires in quite a rapid succession.
Immediately I assumed spark plugs so got them changed but problem still persists no engine management light is present the blow out valve changes its tone to a slightly more high pitched noise when it shudders but I'd assume that's normal in higher gears.
I can still floor it to a certain point but there's a point where it will struggle to keep pushing.
All help appreciated
Note not sure if coil pack or wiring triggers engine management as they are the individual coils.