You are right Dennis, the wrong hose was being used. 

I winder though about the pump loosing prime. No buzzer or light when idling upon first re-start after fix, only when revved above 2k. Then as I dorve with it buzzing, the buzzing stopped after about 4 minutes.

Restart at home - everything appears normal.

I'll check for wiring/connection issues with oil press senders. I have to say that the access to the senders is one of my pet peeves of the WBX. 

Thanks for the temp II sender connector tip.

alistair

On 2012-11-27, at 7:39 PM, Dennis Haynes wrote:

> That coolant hose being brittle indicates the wrong hose was used there.
> Fuel hose is NOT the correct choice. 443-121-107-A is the correct part
> number. It is a very flexible hose and good clamps are needed not to cut it.
> 
> 
> The oil pressure buzzer is the higher oil pressure switch which is looked at
> when engine speed is over 2,000 rpm. May just be a loose wire or the engine
> did overheat and the pump lost its prime. Go for the loose wire or bad
> connection. 
> 
> For the temp 2 sensor the connector is the same as for the injectors except
> for color. These GM style connectors are available at the  FLAPS even at the
> help or Cal-Term displays. 
> 
> Dennis