Lack of boost and power

Had van serviced last week, and since noticed that in the morning the turbo doesnt cut in as soon as it should. Van doesnt seem as pokey, and today on my way to guz I had to change down going up telegraph hill. Usually i hammer up there in 5th at 75 ish. Top end on level is now only 85ish where before i easily hit a ton. Any ideas?? I have definately lost power somewhere.
Engine is 2.5tdi 102bhp

More than likely it your MAF sensor (or could be MAS sensor).

Mine went and made a huge difference when replaced!

cheers m8 - i'll see about ordering one. Got any phots of where it goes and where it is etc??

Its on the air pipe that comes out from the air box!

They aint that cheap, bout £60 i think.

I'll have a chat tomorrow with a good mate that knows his T4's inside out and see if he knows any way of testing them.

thx - just as well 'cos I'm skint again!

To test em all you do is unplug it! If it drivs the same you know its stuffed.

thanks Elvis - yeh, did it and no change; so thats me MAF ferked then. Bugger!

Bugger. Have shuftie on forums , i think general concensus is to spend money on a VW or branded aftermarket as opposed to ebay cheapness.

Yeh - confirmed that with bloke opposite. He recommends bosch over the OE one. 70 quid bosch vs 25 quid ebay shizen? sold! (herr bosch that is..)

new MAF (at last) - 59 quid from TPS in marsh barton. Goes like a fekker again, result!

Good news Jimbo! Not a bad price.