Hello from Finland.

I have same kind of problem with -99 TCI Focus. After start, everything is OK for about 0,5-5km, but after that engine loses power, runs like non-turbo engine. When i turn ignition on/off on-the-fly, all will be ok for a while, until it does the same trick again.

When I bought this car 2 weeks ago, it had MAP sensor pressure pipe broken and it didnīt boost at all -> fixed immediately.

Codes readed with AutoCom:

P1564 Pump requesting reduced fueling
P0167 O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)

Things done so far:
-Injection pumpīs ECU has been fixed for about 50000km ago.
-New fuel & air filter
-No visible fuel or air leaks
-Wiring looks to be ok
-EGR manually blocked
-Tried another MAP sensor from 100% working car
-Tried another actuator control valve from 100% working car (I donīt know what is it called, near the map sensor fastened to firewall, 3 hoses and electric socket goes in it)
-Manifold air temp sensors cleaned (both 2), I will test them tomorrow when car is in +20c temp.

Car does still the same after all that...