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[TheBoy]

and if he got a P0105, that is usually the boost pressure sensor, though could also be the boost control solenoid (wastegate)

[Omegatoy]

so maybe the boost pressure sensor isnt seeing the boost and doesent throw the xtra fuel in as its supposed to?

[TheBoy]

so maybe the boost pressure sensor isnt seeing the boost and doesent throw the xtra fuel in as its supposed to?

If the boost pressure isn't what the ecu expects, it will drop into limp anyway...

[tony1980]

where is the sensor located , is it the one beneith the airbox with the wastegate pipe going to it and another pipe and then a switch , as i removed that and took the top off to reveil a hole and i blew down it and it was really hard to pass air through it was spluttering as if it was blocked or is it meant to be like that

[Omegatoy]

dont know where its is on the 4 pot but should be a small bore pipe leading from the boost hose to a small electrical switch somewhere, if the motor has had extended oil changes this will be one of the first things to block up, also a worn turbo wil allow a small amount of oil up the boost pipe and again its the boost sensor that gets most of it!! and blocks again!!

[TheBoy]

from memory, I think its bolted to top of inlet part of head on these lumps

[tony1980]

[tony1980]

thats a simular picture of the exact engine with airbox missing

[TheBoy]

other side under plastics (from memory)

[tony1980]

ok all i remember uner the cover is a load of wires and the EGR valve but ill take a few pics in morning and send em through so you can have a look , its really annoying as the tech2 wouldnt even read the ecu as that would of solved it

[tony1980]

just done another search on google and people are saying the boost control sensor /valve is the one which the thin pipe off the actuator gos to which is the one beneith the turbo / airbox ?

[TheBoy]

ok all i remember uner the cover is a load of wires and the EGR valve but ill take a few pics in morning and send em through so you can have a look , its really annoying as the tech2 wouldnt even read the ecu as that would of solved it

Was it a real tech2?

[tony1980]

yes mate genuine vauxhall one , the the local technitions who ALL the local garages and ourselfs use , he first bought 2 others then came back with the tech2 but none would read it , i had another member send me a pm saying he has had the same problem with his 2.2 td and the tech2 wouldnt read his neither

[TheBoy]

yes mate genuine vauxhall one , the the local technitions who ALL the local garages and ourselfs use , he first bought 2 others then came back with the tech2 but none would read it , i had another member send me a pm saying he has had the same problem with his 2.2 td and the tech2 wouldnt read his neither

Well as long as the software on the tech2 as not really old, it should read it.  Did he check for continuity between the diag socket and the engine ecu?

[tony1980]

i have no idea bud