Noticed the ther day that the turbo boost has dropped significantly, not sure why??

I have a UK Legacy 2.0 Turbo 1994 (same as classic impreza running gear and managment i believe?) The car has Cone filter, Full Decat and is fitted with a VOS Chip which runs 15 PSI.

Car seems to be running fine but now only hits around 5 PSI, bit of a difference in driving pleasure!

Found this link on the site earlier,
http://www.saxonfields.freeserve.co....htm#_ECU_Reset

Managed to find the connectors after a bit of wriggling and squeezing around the driver footwell.

Tried the first method descrided with the car at standstill just with ignition on but CEL flashed sequence to show no fault, ok.

Using second method, descibed 'ECU Reset' in the Link which requires driving the car for a short time, I had a result CEL flashed to show the following results
No. 32 - Oxygen Sensor (Is this Lamba sensor in downpipe??)
No. 43 - Throttle Switch

Is it a bit strange to expect that 2 sensors have failed at the sametime!!

Over the past 3-4 months Check Engine Light has come on a couple of times and car gone into limp mode, after turning ignition off and restarting fault had cleared and car ran fine, could these errors be recorded from this??

Any Ideas wat to do/change first??

Any Ideas on the cost of a lamba sensor?

Sorry for so many questions, hope some one can help

Regards Lee

 

No one got any thoughts on this???