VTR Turbo running issue

[James93]

Car has developed weird misfire below 2k rpm, if don't Rev the car it dies and when accerlating it misfires and dies then kicks back into life and full throttle it's fine, just low rpm below 2k. So far changed coilpack spark plugs and injectors and rail.

Map sensor?

Car is VTR with new mans ph3 cam and s1 rallye inlet

This is the explanation I got from the owner:

It's rough idle then eventually stalls, if you Rev it slightly then let off it just dies, the rpm's bounce at low idle, around 2krpm the engine cuts out and then try's to pick up again at low rpm, pulling away the car stalls and starts itself, jerky, throws the car back and forward but once in higher rpm it runs normal but under powered

[Chipwizards]

Read the codes. Look at live data.
Look for rpm dropping out or being very random (crank sensor or wiring) look for erratic or unstable manifold pressure, or completely static manifold pressure. (MAP sensor)
Look for loss of comms, maybe system relay.