They're thieves. The cost is so high because you're supporting the dealer's family as well as the mechanic's that's actually working on your car. There's a ton of overhead associated with a dealership. Buy the part online and install it yourself. Or just erase the DTC codes and see if they come back. The codes are read from the DTC boxes located behind the rightside headlight area. On '95 Turbo models you can also read the codes from the OBDII data port under the coin holder using a Actron 9135 scanner (or similiar scanner...).

(Erasing Codes)

1) Codes can be erased only after all DTCs have been
displayed and first DTC has been repeated at least once. To erase DTC,
turn ignition on. Press test button on Volvo diagnostic unit and hold
for more than 5 seconds. Wait for LED response.

2) Press button again and hold for more than 5 seconds. Turn
ignition off and on. Start engine. All DTCs will be erased and all
adaptive values reset.



Those that skimp and try and use a generic O2 sensor usually end up with more DTC codes when they're done.


Order the right part from FCPGroton.com and be done with it.







Mike
'95 850T