Hi I have a issue on my mk5 GTI during idle I have misfire on cylinder 3 and 4 and during high 5000rpm my car judders changed out fuel filter, pcv valve, plugs, coils, O2 sensor, 2 injectors and recently put in a new cam follower my car is still misfiring at low idle and it judders and misfires at 5000rpm onwards when I scanned the car I get P1093, P0300,P0301 and P0302 but no check engine light my car as a stage 1 Apr with intake and downpipe not sure what else to look at?
My car is a 2008 BWA engine with 103 000 miles I had recently done the water pump, cambelt and diverter valve the issue only seems to be happening at higher gears 3 4 5 6 gears at 5000 rpm and higher it breaks up and then keeps going on 1st and 2nd gear the car pulls normal and smooth and if you drive it normal you can't tell there's a issue. What else can I look at any help will be appreciated thanks in advance