RomRaider

I have a client who gave me the car to fix it, but I'm struggling to see the the fix

The car came to me with bad idle, bad missfire at low rpm, and after 4k rpm, he runs good but hesitate, but it reaches to revlimiter.
Did the diagnostic, and change the crankshaft position sensor , new from bmw, and it idles and runs great, until 4krpm when HOT.

I have the BMW SCANNER 1.4 and read the errors:
Timeout can message of egs
Tank ventilation valve
Lambda heating probe 2
Engine speed/crankshaft position sensor
Muffler flap.

And Shadow
The same errors.


After i clean the errors I've got only:
Timeout can
Tank ventilation
Lambda probe
And pulse width modulated signal for aircon.


Start the car and I've got the same crankshaft error and still won't be smooth after 4krpm


Any help?