P0105 and p1105 keep coming on my 2.0 td 03 reg vectra

Have you cleared all the faults?
Try it again after clearing.

105=MAP Circuit Malfunction (generic USA fed spec)
1105 = same as above but P1 means toyota factory code,
so what does this mean, it means the MAP monitor (tests) are failing.
what can make this fail; lots.
1: map bad.
2: map port clogged with crud, clean it, some cars have hose, it fell off or some one unpugged it, with key engine running.
3: wires to map bad.
4: engine vacuum real bad. a massive air (vacuum) leak. to the engine plenum and intake track.
reset it and see if it comes back
no engine power issues, as THE map RUN THE FUELING SHOW.

you need to back flush the system. take the hoses of the rad line to the in side rad. and flush it out. at same time may aswell to the rest of the system get all the muck out of the system. needs to be done evey few years.

there is a vale on the injector fuel line will have a plastic cap on it take this off and press it down till fuel comes out keep doing this turn key to 2, pump kick in. turn off. push pin down on line valve. keep doing this till fuel comes out. then put cap back on and start engine will take a few turns then start.

Looking at the vehicle its on the right hand side,also before condeming,make sure the MAF (mass air flow ) boot is not torn and there is no vacuum leak causing false air

The missing codes may be Saab-specific but two were found:
- P0105= MAP/BARO Circuit Malfunction - P1105 not listed - P0100 " " - P0234= Engine Overboost Condition
If in the US or Canada, check with a chain auto parts store, they may have all of the codes.
Hope that helps-

go here and Charlie, Randy or I will guide you through diagnosis

http://groups.yahoo.com/group/villagerquest/

Check ALL bolts. look at sway bar bushings, strut mounts,

you might want to scope the ignition module.

check the fuses... usually thats the fix....