I pulled out of a garage fourcourt today onto a sliproad and floored it and for some reason the turbo was only giving about 3/4 boost. It stayed like this for about 1 mile and then went back to normal. I hope this doesn't mean my turbo is on its way out. Could this be the ECU doing this because the turbo is hot??
I have a turbo timer so I would have thought the turbo should be in good nick.
I have a MY99 UK turbo with 55K on the clock and its always had subaru service every 7500 miles. Any ideas??

 

Im assuming the car wasnt cold then, as you mention the turbo is hot??

 

It had been cruising on the motorway for about 45 mins at about 80-90mph

 

Have a look at my post in the following thread....

http://bbs.scoobynet.co.uk/showthread.php?t=359228


(saves me typing it in again )

 

Cheers Ali, that could be it, although it wasn't happening in that way. It went on for about 2 mins so I dropped off the power and then it miraculously returned

 

It happened again today and it stayed on half boost until i got home. I hope it will be back to normal tomorrow

 

If it only run 0.5 bar in every gear (8 PSI) without a check engine light, then it is probably responding to knock and your MAF sensor has failed.