M.B. DOC,

Yes sir, the part was new and in the original Bosch box. I ordered it as well from Auothaus AZ.

I did not check the pressure regualtor, I will verify if the shop has done it yet. I wish I had the tools to make all the necessary checks.

The shop it is in mainly works on Mercedes and BMW's so I thought they were a good choice but they have been unable to chase this one down for the last week.

I know they checked the system pressure while the car was acting bad and they said it checked OK. they were not sure why the O2 sensor was giving them negative readings.


John