during deceleration at a traffic light idle will raise/surge up slightly. during accelaration if I hold on 3rd head at 4k for 10 seconds then accelerating is the only time I can feel the power of the 3IM with the AA tune. I do all my own work unless Indy is necessary.

My guess is a pcv on the valve cover, disa needs to be replaced or VVT needs recalibration.

So far things I’ve replaced since I’m at 115k in mileag.

2 camshaft sensors

2 vanos selanoid

maf

battery is good

went in for vent hose heater recall

post and pre o2 sensors repalced

reset all adaptations

fuel pump and fuel pressure regulator

new coils and plugs

water pump and thermostat

Will be replacing valve cover next, eccentric sensor

Valvetronic motor

crank shaft sensor

any insight would be greatly appreciate.